Lista de obras - Won Sik Ham - Dominio Público Uruguay

A Systematic Review and Meta-Analysis of Functional Outcomes and Complications Following the Photoselective Vaporization of the Prostate and Monopolar Transurethral Resection of the Prostate.

artículo científico publicado en 2016

A comparative study of laparoendoscopic single-site surgery versus conventional laparoscopy for upper urinary tract malignancies.

artículo científico publicado en 2013

A competing risk analysis of cancer-specific mortality of initial treatment with radical prostatectomy versus radiation therapy in clinically localized high-risk prostate cancer

scientific article published on 20 May 2014

A network meta-analysis of therapeutic outcomes after new image technology-assisted transurethral resection for non-muscle invasive bladder cancer: 5-aminolaevulinic acid fluorescence vs hexylaminolevulinate fluorescence vs narrow band imaging.

artículo científico publicado en 2015

Accuracy of Urinary Neutrophil Gelatinase-Associated Lipocalin in Quantifying Acute Kidney Injury after Partial Nephrectomy in Patients with Normal Contralateral Kidney.

artículo científico publicado en 2015

Age-adjusted Charlson Comorbidity Index as a prognostic factor for radical prostatectomy outcomes of very high-risk prostate cancer patients.

artículo científico publicado en 2018

Age-specific prostate-specific antigen reference ranges in Korean men

artículo científico publicado en 2007

Anatomical Retzius-space preservation is associated with lower incidence of postoperative inguinal hernia development after robot-assisted radical prostatectomy.

artículo científico publicado en 2017

Assessing the anatomical characteristics of renal masses has a limited effect on the prediction of pathological outcomes in solid, enhancing, small renal masses: results using the PADUA classification system.

artículo científico publicado en 2013

Association of Anterior and Lateral Extraprostatic Extensions with Base-Positive Resection Margins in Prostate Cancer

artículo científico publicado en 2016

Clinical Outcomes of Bosniak Category IIF Complex Renal Cysts in Korean Patients.

artículo científico publicado en 2012

Clinical characteristics of renal cell carcinoma in Korean patients with von Hippel-Lindau disease compared to sporadic bilateral or multifocal renal cell carcinoma

artículo científico publicado en 2009

Clinical experience of single-session percutaneous aspiration and OK-432 sclerotherapy for treatment of simple renal cysts: 1-year follow-up.

artículo científico publicado en 2009

Clinical experiences of pheochromocytoma in Korea.

artículo científico publicado en 2011

Comparison of High, Intermediate, and Low Frequency Shock Wave Lithotripsy for Urinary Tract Stone Disease: Systematic Review and Network Meta-Analysis

artículo científico publicado en 2016

Comparison of multiple session 99% ethanol and single session OK-432 sclerotherapy for the treatment of simple renal cysts.

artículo científico publicado en 2008

Comparison of oncological results, functional outcomes, and complications for transperitoneal versus extraperitoneal robot-assisted radical prostatectomy: a single surgeon's experience.

artículo científico publicado en 2010

Daily use of sildenafil 50mg at night effectively ameliorates nocturia in patients with lower urinary tract symptoms associated with benign prostatic hyperplasia: an exploratory multicenter, double-blind, randomized, placebo-controlled study

artículo científico publicado en 2017

Does Radiotherapy for the Primary Tumor Benefit Prostate Cancer Patients with Distant Metastasis at Initial Diagnosis?

artículo científico publicado en 2016

Does robot-assisted radical prostatectomy benefit prostate cancer patients with bone oligometastases?

artículo científico publicado en 2017

Early Application of Permanent Metallic Mesh Stent in Substitution for Temporary Polymeric Ureteral Stent Reduces Unnecessary Ureteral Procedures in Patients With Malignant Ureteral Obstruction.

artículo científico

Effect of Preoperative Risk Group Stratification on Oncologic Outcomes of Patients with Adverse Pathologic Findings at Radical Prostatectomy

artículo científico publicado en 2016

Efficacy and Safety of Robotic Procedures Performed Using the da Vinci Robotic Surgical System at a Single Institute in Korea: Experience with 10000 Cases

scientific article published on 01 October 2018

Efficacy and safety of solifenacin to treat overactive bladder symptoms in patients with idiopathic normal pressure hydrocephalus: an open-label, multicenter, prospective study.

artículo científico publicado en 2012

Efficacy of octreotide for management of lymphorrhea after pelvic lymph node dissection in radical prostatectomy.

artículo científico publicado en 2010

Expression of chicken ovalbumin upstream promoter-transcription factor I (COUP-TFI) in bladder transitional cell carcinoma.

artículo científico publicado en 2008

External validation of the RENAL nephrometry score nomogram for predicting high-grade renal cell carcinoma in solid, enhancing, and small renal masses

artículo científico publicado en 2013

FOXC2 and CLIP4 : a potential biomarker for synchronous metastasis of ≤7-cm clear cell renal cell carcinomas.

artículo científico publicado en 2016

Functional and oncologic outcomes of open, laparoscopic and robotic partial nephrectomy: A Multicenter comparative matched-pair analyses with a median 5 years follow up.

artículo científico publicado en 2018

Gene Expression Analysis of Aggressive Clinical T1 Stage Clear Cell Renal Cell Carcinoma for Identifying Potential Diagnostic and Prognostic Biomarkers

artículo científico publicado en 2020

Gene amplification and mutation analysis of epidermal growth factor receptor in hormone refractory prostate cancer.

artículo científico publicado en 2008

Impact of Early Salvage Androgen Deprivation Therapy in Localized Prostate Cancer after Radical Prostatectomy: A Propensity Score Matched Analysis.

artículo científico publicado en 2018

Impact of colic pain as a significant factor for predicting the stone free rate of one-session shock wave lithotripsy for treating ureter stones: a Bayesian logistic regression model analysis

artículo científico publicado en 2015

Impact of lymphovascular invasion on lymph node metastasis for patients undergoing radical prostatectomy with negative resection margin

artículo científico publicado en 2017

Impact of metformin on serum prostate-specific antigen levels: Data from the national health and nutrition examination survey 2007 to 2008.

artículo científico publicado en 2017

Inherent characteristics of metachronous metastatic renal cell carcinoma in the era of targeted agents

artículo científico publicado en 2017

Initial experience with laparoendoscopic single-site nephrectomy and nephroureterectomy in children

scientific article published on 04 December 2010

Intermediate PSA half-life after neoadjuvant hormone therapy predicts reduced risk of castration-resistant prostate cancer development after radical prostatectomy.

artículo científico publicado en 2017

Intraoperative and postoperative feasibility and safety of total tubeless, tubeless, small-bore tube, and standard percutaneous nephrolithotomy: a systematic review and network meta-analysis of 16 randomized controlled trials.

artículo científico publicado en 2017

Intravesical Recurrence after Radical Nephroureterectomy in Patients with Upper Tract Urothelial Carcinoma Is Associated with Flexible Diagnostic Ureteroscopy, but Not with Rigid Diagnostic Ureteroscopy

artículo científico publicado en 2022

Is the extirpative surgery for primary tumor helpful for the patients with metastatic urothelial cancer at the time of diagnosis?

artículo científico publicado en 2019

Laparoendoscopic Single-Site Surgeries: A Single-Center Experience of 171 Consecutive Cases ⬇️

artículo científico publicado el 24 de enero de 2011

Laparoendoscopic single site varicocele ligation: comparison of testicular artery and lymphatic preservation versus complete testicular vessel ligation.

artículo científico publicado en 2012

Laparoendoscopic single-site nephrectomy using a modified umbilical incision and a home-made transumbilical port.

artículo científico publicado en 2011

Long-term outcome of simultaneous transurethral resection of bladder tumor and prostate in patients with nonmuscle invasive bladder tumor and bladder outlet obstruction

artículo científico publicado en 2009

Malfunction of da Vinci robotic system--disassembled surgeon's console hand piece: case report and review of the literature.

artículo científico publicado en 2008

Management of postoperative ileus after robot-assisted laparoscopic prostatectomy

scientific article published on 01 November 2018

Microsurgical intermediate subinguinal varicocelectomy

artículo científico publicado en 2014

Muscle Characteristics Obtained Using Computed Tomography as Prognosticators in Patients with Castration-Resistant Prostate Cancer

artículo científico publicado en 2020

Neutrophil-to-Lymphocyte Ratio Predicts Pathological Renal Sinus Fat Invasion in Renal Cell Carcinomas of ≤7 cm with Presumed Renal Sinus Fat Invasion

scientific article published on 01 November 2019

New Prostate Cancer Grading System Predicts Long-term Survival Following Surgery for Gleason Score 8-10 Prostate Cancer.

artículo científico publicado en 2016

Oncological outcomes after partial vs radical nephrectomy in renal cell carcinomas of ≤7 cm with presumed renal sinus fat invasion on preoperative imaging.

artículo científico publicado en 2014

Open versus robotic radical prostatectomy: a prospective analysis based on a single surgeon's experience.

artículo científico publicado en 2008

Optimal Skin-to-Stone Distance Is a Positive Predictor for Successful Outcomes in Upper Ureter Calculi following Extracorporeal Shock Wave Lithotripsy: A Bayesian Model Averaging Approach

artículo científico publicado en 2015

Pathologic Outcomes in Men with Low-risk Prostate Cancer Who Are Potential Candidates for Contemporary, Active Surveillance Protocols.

artículo científico publicado en 2015

Postoperative biochemical recurrence of pathologically localized high-grade prostate cancer in adjuvant treatment-naïve patients

scientific article published on 14 October 2019

Prediction of High-Grade Clear Cell Renal Cell Carcinoma Based on Plasma mRNA Profiles in Patients with Localized Pathologic T1N0M0 Stage Disease

scientific article published on 07 May 2020

Prediction of organ-confined disease after robot-assisted radical prostatectomy in patients with clinically locally-advanced prostate cancer.

artículo científico publicado en 2017

Predictive factors and treatment outcomes of Steinstrasse following shock wave lithotripsy for ureteral calculi: A Bayesian regression model analysis.

artículo científico publicado en 2018

Predictive value of preoperative monocyte-lymphocyte ratio among patients with localized clear renal cell carcinoma of ≤7 cm on preoperative imaging

artículo científico publicado en 2018

Predictors of adverse pathologic features after radical prostatectomy in low-risk prostate cancer.

artículo científico publicado en 2018

Predictors of biochemical recurrence after Retzius-sparing robot-assisted radical prostatectomy: Analysis of 359 cases with a median follow-up period of 26 months

scientific article published on 01 October 2018

Preoperative controlling nutritional status (CONUT) score as a novel immune-nutritional predictor of survival in non-metastatic clear cell renal cell carcinoma of ≤ 7 cm on preoperative imaging

scientific article published on 13 February 2019

Prognostic Significance of Vas Deferens Invasion After Radical Prostatectomy in Patients with Pathological Stage T3b Prostate Cancer.

artículo científico publicado en 2016

Prognostic factors for urachal cancer: a bayesian model-averaging approach.

artículo científico publicado en 2014

Prognostic impact of preoperative neutrophil-to-lymphocyte ratio after radical prostatectomy in localized prostate cancer.

artículo científico publicado en 2016

Prostate-specific antigen density predicts favorable pathology and biochemical recurrence in patients with intermediate-risk prostate cancer

artículo científico publicado en 2015

Prostate-specific antigen velocity in healthy Korean men with initial PSA levels of 4.0 ng/mL or less.

artículo científico publicado en 2008

Prostatic urethral angulation associated with urinary flow rate and urinary symptom scores in men with lower urinary tract symptoms.

artículo científico publicado en 2012

Recent global trends in testicular cancer incidence and mortality

artículo científico publicado en 2018

Renal pelvic urothelial carcinoma with vena caval thrombus mimicking renal cell carcinoma.

artículo científico publicado en 2014

Retroperitoneoscopic partial nephrectomy in a horseshoe kidney.

artículo científico publicado en 2011

Risk Prediction Tool for Aggressive Tumors in Clinical T1 Stage Clear Cell Renal Cell Carcinoma Using Molecular Biomarkers

artículo científico publicado en 2019

Robot-Assisted Partial Nephrectomy for Totally Endophytic Renal Tumors: Step by Step Standardized Surgical Technique and Long-Term Outcomes with a Median 59-Month Follow-Up

artículo científico publicado en 2018

Robot-assisted laparoscopic partial nephrectomy during pregnancy

artículo científico publicado en 2008

Robot-assisted laparoscopic radical cystoprostatectomy with ileal conduit urinary diversion: initial experience in Korea.

artículo científico publicado en 2008

Robotic prostatectomy in patient with an abdominoperineal resection.

artículo científico publicado en 2009

Robotic repair of scrotal bladder hernia during robotic prostatectomy.

artículo científico publicado en 2008

Scale-Up Evaluation of a Composite Tumor Marker Assay for the Early Detection of Renal Cell Carcinoma

artículo científico publicado en 2020

The "halo effect" in Korea: change in practice patterns since the introduction of robot-assisted laparoscopic radical prostatectomy.

artículo científico publicado en 2009

The Impact of Downgrading from Biopsy Gleason 7 to Prostatectomy Gleason 6 on Biochemical Recurrence and Prostate Cancer Specific Mortality

artículo científico publicado en 2016

The Within-Group Discrimination Ability of the Cancer of the Prostate Risk Assessment Score for Men with Intermediate-Risk Prostate Cancer

artículo científico publicado en 2018

The beneficial effect of alpha-blockers for ureteral stent-related discomfort: systematic review and network meta-analysis for alfuzosin versus tamsulosin versus placebo

artículo científico publicado en 2015

The prognostic impact of downgrading and upgrading from biopsy to radical prostatectomy among men with Gleason score 7 prostate cancer

scientific article published on 04 September 2019

The prognostic role of tertiary Gleason pattern 5 in a contemporary grading system for prostate cancer.

artículo científico publicado en 2016

The prognostic significance of postoperative neutrophil-to-lymphocyte ratio after radical prostatectomy for localized prostate cancer

artículo científico publicado en 2016

The role of metastasis-directed therapy and local therapy of the primary tumor in the management of oligometastatic prostate cancer

artículo científico publicado en 2017

Transmesocolic approach for left side laparoscopic pyeloplasty: comparison with laterocolic approach in the initial learning period

artículo científico publicado en 2013

Trends of presentation and clinical outcome of treated renal angiomyolipoma

artículo científico publicado en 2010

Ureteral stenting can be a negative predictor for successful outcome following shock wave lithotripsy in patients with ureteral stones.

artículo científico publicado en 2016

Visceral Adiposity as a Significant Predictor of Sunitinib-Induced Dose-Limiting Toxicities and Survival in Patients with Metastatic Clear Cell Renal Cell Carcinoma

scientific article published on 02 December 2020

Yonsei nomogram: A predictive model of new-onset chronic kidney disease after on-clamp partial nephrectomy in patients with T1 renal tumors

artículo científico publicado en 2018

Lista de obras de Won Sik Ham

A Systematic Review and Meta-Analysis of Functional Outcomes and Complications Following the Photoselective Vaporization of the Prostate and Monopolar Transurethral Resection of the Prostate.

A comparative study of laparoendoscopic single-site surgery versus conventional laparoscopy for upper urinary tract malignancies.

A competing risk analysis of cancer-specific mortality of initial treatment with radical prostatectomy versus radiation therapy in clinically localized high-risk prostate cancer

A network meta-analysis of therapeutic outcomes after new image technology-assisted transurethral resection for non-muscle invasive bladder cancer: 5-aminolaevulinic acid fluorescence vs hexylaminolevulinate fluorescence vs narrow band imaging.

Accuracy of Urinary Neutrophil Gelatinase-Associated Lipocalin in Quantifying Acute Kidney Injury after Partial Nephrectomy in Patients with Normal Contralateral Kidney.

Age-adjusted Charlson Comorbidity Index as a prognostic factor for radical prostatectomy outcomes of very high-risk prostate cancer patients.

Age-specific prostate-specific antigen reference ranges in Korean men

Anatomical Retzius-space preservation is associated with lower incidence of postoperative inguinal hernia development after robot-assisted radical prostatectomy.

Assessing the anatomical characteristics of renal masses has a limited effect on the prediction of pathological outcomes in solid, enhancing, small renal masses: results using the PADUA classification system.

Association of Anterior and Lateral Extraprostatic Extensions with Base-Positive Resection Margins in Prostate Cancer

Clinical Outcomes of Bosniak Category IIF Complex Renal Cysts in Korean Patients.

Clinical characteristics of renal cell carcinoma in Korean patients with von Hippel-Lindau disease compared to sporadic bilateral or multifocal renal cell carcinoma

Clinical experience of single-session percutaneous aspiration and OK-432 sclerotherapy for treatment of simple renal cysts: 1-year follow-up.

Clinical experiences of pheochromocytoma in Korea.

Comparison of High, Intermediate, and Low Frequency Shock Wave Lithotripsy for Urinary Tract Stone Disease: Systematic Review and Network Meta-Analysis

Comparison of multiple session 99% ethanol and single session OK-432 sclerotherapy for the treatment of simple renal cysts.

Comparison of oncological results, functional outcomes, and complications for transperitoneal versus extraperitoneal robot-assisted radical prostatectomy: a single surgeon's experience.

Daily use of sildenafil 50mg at night effectively ameliorates nocturia in patients with lower urinary tract symptoms associated with benign prostatic hyperplasia: an exploratory multicenter, double-blind, randomized, placebo-controlled study

Does Radiotherapy for the Primary Tumor Benefit Prostate Cancer Patients with Distant Metastasis at Initial Diagnosis?

Does robot-assisted radical prostatectomy benefit prostate cancer patients with bone oligometastases?

Early Application of Permanent Metallic Mesh Stent in Substitution for Temporary Polymeric Ureteral Stent Reduces Unnecessary Ureteral Procedures in Patients With Malignant Ureteral Obstruction.

Effect of Preoperative Risk Group Stratification on Oncologic Outcomes of Patients with Adverse Pathologic Findings at Radical Prostatectomy

Efficacy and Safety of Robotic Procedures Performed Using the da Vinci Robotic Surgical System at a Single Institute in Korea: Experience with 10000 Cases

Efficacy and safety of solifenacin to treat overactive bladder symptoms in patients with idiopathic normal pressure hydrocephalus: an open-label, multicenter, prospective study.

Efficacy of octreotide for management of lymphorrhea after pelvic lymph node dissection in radical prostatectomy.

Expression of chicken ovalbumin upstream promoter-transcription factor I (COUP-TFI) in bladder transitional cell carcinoma.

External validation of the RENAL nephrometry score nomogram for predicting high-grade renal cell carcinoma in solid, enhancing, and small renal masses

FOXC2 and CLIP4 : a potential biomarker for synchronous metastasis of ≤7-cm clear cell renal cell carcinomas.

Functional and oncologic outcomes of open, laparoscopic and robotic partial nephrectomy: A Multicenter comparative matched-pair analyses with a median 5 years follow up.

Gene Expression Analysis of Aggressive Clinical T1 Stage Clear Cell Renal Cell Carcinoma for Identifying Potential Diagnostic and Prognostic Biomarkers

Gene amplification and mutation analysis of epidermal growth factor receptor in hormone refractory prostate cancer.

Impact of Early Salvage Androgen Deprivation Therapy in Localized Prostate Cancer after Radical Prostatectomy: A Propensity Score Matched Analysis.

Impact of colic pain as a significant factor for predicting the stone free rate of one-session shock wave lithotripsy for treating ureter stones: a Bayesian logistic regression model analysis

Impact of lymphovascular invasion on lymph node metastasis for patients undergoing radical prostatectomy with negative resection margin

Impact of metformin on serum prostate-specific antigen levels: Data from the national health and nutrition examination survey 2007 to 2008.

Inherent characteristics of metachronous metastatic renal cell carcinoma in the era of targeted agents

Initial experience with laparoendoscopic single-site nephrectomy and nephroureterectomy in children

Intermediate PSA half-life after neoadjuvant hormone therapy predicts reduced risk of castration-resistant prostate cancer development after radical prostatectomy.

Intraoperative and postoperative feasibility and safety of total tubeless, tubeless, small-bore tube, and standard percutaneous nephrolithotomy: a systematic review and network meta-analysis of 16 randomized controlled trials.

Intravesical Recurrence after Radical Nephroureterectomy in Patients with Upper Tract Urothelial Carcinoma Is Associated with Flexible Diagnostic Ureteroscopy, but Not with Rigid Diagnostic Ureteroscopy

Is the extirpative surgery for primary tumor helpful for the patients with metastatic urothelial cancer at the time of diagnosis?

Laparoendoscopic Single-Site Surgeries: A Single-Center Experience of 171 Consecutive Cases ⬇️

Laparoendoscopic single site varicocele ligation: comparison of testicular artery and lymphatic preservation versus complete testicular vessel ligation.

Laparoendoscopic single-site nephrectomy using a modified umbilical incision and a home-made transumbilical port.

Long-term outcome of simultaneous transurethral resection of bladder tumor and prostate in patients with nonmuscle invasive bladder tumor and bladder outlet obstruction

Malfunction of da Vinci robotic system--disassembled surgeon's console hand piece: case report and review of the literature.

Management of postoperative ileus after robot-assisted laparoscopic prostatectomy

Microsurgical intermediate subinguinal varicocelectomy

Muscle Characteristics Obtained Using Computed Tomography as Prognosticators in Patients with Castration-Resistant Prostate Cancer

Neutrophil-to-Lymphocyte Ratio Predicts Pathological Renal Sinus Fat Invasion in Renal Cell Carcinomas of ≤7 cm with Presumed Renal Sinus Fat Invasion

New Prostate Cancer Grading System Predicts Long-term Survival Following Surgery for Gleason Score 8-10 Prostate Cancer.

Oncological outcomes after partial vs radical nephrectomy in renal cell carcinomas of ≤7 cm with presumed renal sinus fat invasion on preoperative imaging.

Open versus robotic radical prostatectomy: a prospective analysis based on a single surgeon's experience.

Optimal Skin-to-Stone Distance Is a Positive Predictor for Successful Outcomes in Upper Ureter Calculi following Extracorporeal Shock Wave Lithotripsy: A Bayesian Model Averaging Approach

Pathologic Outcomes in Men with Low-risk Prostate Cancer Who Are Potential Candidates for Contemporary, Active Surveillance Protocols.

Postoperative biochemical recurrence of pathologically localized high-grade prostate cancer in adjuvant treatment-naïve patients

Prediction of High-Grade Clear Cell Renal Cell Carcinoma Based on Plasma mRNA Profiles in Patients with Localized Pathologic T1N0M0 Stage Disease

Prediction of organ-confined disease after robot-assisted radical prostatectomy in patients with clinically locally-advanced prostate cancer.

Predictive factors and treatment outcomes of Steinstrasse following shock wave lithotripsy for ureteral calculi: A Bayesian regression model analysis.

Predictive value of preoperative monocyte-lymphocyte ratio among patients with localized clear renal cell carcinoma of ≤7 cm on preoperative imaging

Predictors of adverse pathologic features after radical prostatectomy in low-risk prostate cancer.

Predictors of biochemical recurrence after Retzius-sparing robot-assisted radical prostatectomy: Analysis of 359 cases with a median follow-up period of 26 months

Preoperative controlling nutritional status (CONUT) score as a novel immune-nutritional predictor of survival in non-metastatic clear cell renal cell carcinoma of ≤ 7 cm on preoperative imaging

Prognostic Significance of Vas Deferens Invasion After Radical Prostatectomy in Patients with Pathological Stage T3b Prostate Cancer.

Prognostic factors for urachal cancer: a bayesian model-averaging approach.

Prognostic impact of preoperative neutrophil-to-lymphocyte ratio after radical prostatectomy in localized prostate cancer.

Prostate-specific antigen density predicts favorable pathology and biochemical recurrence in patients with intermediate-risk prostate cancer

Prostate-specific antigen velocity in healthy Korean men with initial PSA levels of 4.0 ng/mL or less.

Prostatic urethral angulation associated with urinary flow rate and urinary symptom scores in men with lower urinary tract symptoms.

Recent global trends in testicular cancer incidence and mortality

Renal pelvic urothelial carcinoma with vena caval thrombus mimicking renal cell carcinoma.

Retroperitoneoscopic partial nephrectomy in a horseshoe kidney.

Risk Prediction Tool for Aggressive Tumors in Clinical T1 Stage Clear Cell Renal Cell Carcinoma Using Molecular Biomarkers

Robot-Assisted Partial Nephrectomy for Totally Endophytic Renal Tumors: Step by Step Standardized Surgical Technique and Long-Term Outcomes with a Median 59-Month Follow-Up

Robot-assisted laparoscopic partial nephrectomy during pregnancy

Robot-assisted laparoscopic radical cystoprostatectomy with ileal conduit urinary diversion: initial experience in Korea.

Robotic prostatectomy in patient with an abdominoperineal resection.

Robotic repair of scrotal bladder hernia during robotic prostatectomy.

Scale-Up Evaluation of a Composite Tumor Marker Assay for the Early Detection of Renal Cell Carcinoma