World's Best Scientists 2026 revealed!
J. Alfred Witjes

J. Alfred Witjes

D-Index & Metrics

Medicine

D-Index
115
Citations
57729
World Ranking
4488
National Ranking
170

Overview

J. Alfred Witjes is affiliated with Radboud University in the Netherlands, focusing mainly on Medicine with a significant emphasis on Surgery, Oncology, Pulmonary and Respiratory Medicine, and Urology. Their scientific output includes extensive research related to bladder and urothelial cancer treatments, urinary and genital oncology studies, as well as cancer immunotherapy and biomarkers.

Their recent publications showcase a focus on muscle-invasive and metastatic bladder cancer, with notable papers including:

  • European Association of Urology Guidelines on Muscle-invasive and Metastatic Bladder Cancer: Summary of the 2020 Guidelines (2020, European Urology)
  • European Association of Urology Guidelines on Muscle-invasive and Metastatic Bladder Cancer: Summary of the 2023 Guidelines (2023, European Urology)

Collaborations are a significant aspect of their work. Frequent co-authors include Katja K.H. Aben, Lambertus A. Kiemeney, Richard P. Meijer, Antoine G. van der Heijden, and Shahrokh F. Shariat, highlighting a broad network of researchers contributing to their studies in urological oncology.

Main publication venues where their work appears frequently are:

  • European Urology
  • Journal of Clinical Oncology
  • European Urology Oncology
  • British Journal of Urology
  • The Journal of Urology

The core topics of their research contributions cover:

  • Bladder and Urothelial Cancer Treatments
  • Urinary and Genital Oncology Studies
  • Urological Disorders and Treatments
  • Cancer Immunotherapy and Biomarkers
  • Prostate Cancer Diagnosis and Treatment
  • Esophageal Cancer Research and Treatment
  • Prostate Cancer Treatment and Research

Among their prominent scientific output, several papers have drawn significant attention within the oncology community. These include their comprehensive guidelines for the European Association of Urology on bladder cancer as well as collaborative works published in high-impact journals such as European Urology, New England Journal of Medicine, and The Lancet. Their publications have been cited extensively, demonstrating engagement with their research at an international level.

Witjes' expertise centers on translating clinical guidelines and research findings into treatment protocols for muscle-invasive bladder cancer and related urological cancers. Their research emphasizes both diagnostic and therapeutic strategies within this field, contributing to the broader understanding of cancer immunotherapy and biomarkers in urological oncology.

Best Publications

  • Predicting recurrence and progression in individual patients with stage Ta T1 bladder cancer using EORTC risk tables: a combined analysis of 2596 patients from seven EORTC trials.

    Richard J. Sylvester;Adrian P.M. van der Meijden;Willem Oosterlinck;J. Alfred Witjes

  • Updated 2016 EAU Guidelines on Muscle-invasive and Metastatic Bladder Cancer

    J. Alfred Witjes;Thierry Lebret;Eva M. Compérat;Nigel C. Cowan

  • Erratum: Genetic variation in the prostate stem cell antigen gene PSCA confers susceptibility to urinary bladder cancer (Nature Genetics (2009) 41 (991-995))

    Xifeng Wu;Yuanqing Ye;Lambertus A. Kiemeney;Patrick Sulem

  • European Association of Urology Guidelines on Muscle-invasive and Metastatic Bladder Cancer: Summary of the 2020 Guidelines

    J. Alfred Witjes;Harman Max Bruins;Richard Cathomas;Eva M. Compérat

  • EAU Guidelines on Muscle-invasive and Metastatic Bladder Cancer: Summary of the 2013 Guidelines

    J. Alfred Witjes;Eva Compérat;Nigel C. Cowan;Maria De Santis

  • Genome-wide association study identifies a second prostate cancer susceptibility variant at 8q24.

    Julius Gudmundsson;Patrick Sulem;Andrei Manolescu;Laufey T Amundadottir

  • DD3PCA3-based Molecular Urine Analysis for the Diagnosis of Prostate Cancer

    Daphne Hessels;Jacqueline M.T. Klein Gunnewiek;Inge van Oort;Herbert F.M. Karthaus

  • Variability in the Recurrence Rate at First Follow-up Cystoscopy after TUR in Stage Ta T1 Transitional Cell Carcinoma of the Bladder: A Combined Analysis of Seven EORTC Studies

    Maurizio Brausi;Laurence Collette;Karlheinz Kurth;Adrian P. van der Meijden

  • Recurrence and progression of disease in non-muscle-invasive bladder cancer: from epidemiology to treatment strategy.

    Bas W.G. van Rhijn;Maximilian Burger;Yair Lotan;Eduardo Solsona

  • An individual patient data meta-analysis of the long-term outcome of randomised studies comparing intravesical mitomycin C versus Bacillus Calmette-Guerin for non-muscle-invasive bladder cancer

    Per-Uno Malmström;Richard J. Sylvester;David E. Crawford;Martin Friedrich

  • Prostate Cancer: Multiparametric MR Imaging for Detection, Localization, and Staging

    Caroline M A Hoeks;Jelle O Barentsz;Thomas Hambrock;Derya Yakar

  • Many sequence variants affecting diversity of adult human height

    Daniel F Gudbjartsson;G Bragi Walters;Gudmar Thorleifsson;Hreinn Stefansson

  • Relationship between Apparent Diffusion Coefficients at 3.0-T MR Imaging and Gleason Grade in Peripheral Zone Prostate Cancer

    Thomas Hambrock;Diederik M. Somford;Henkjan J. Huisman;Inge M. van Oort

  • Prostate Cancer Localization with Dynamic Contrast-enhanced MR Imaging and Proton MR Spectroscopic Imaging

    Jurgen J. Fütterer;Stijn W. T. P. J. Heijmink;Tom W. J. Scheenen;Jeroen Veltman

  • The Updated EAU Guidelines on Muscle-Invasive and Metastatic Bladder Cancer

    Arnulf Stenzl;Nigel C. Cowan;Maria De Santis;Gerhard Jakse

  • Accuracy of Magnetic Resonance Imaging for Local Staging of Prostate Cancer: A Diagnostic Meta-analysis

    Maarten de Rooij;Esther H.J. Hamoen;J. Alfred Witjes;Jelle O. Barentsz

  • Adjuvant Nivolumab versus Placebo in Muscle-Invasive Urothelial Carcinoma.

    Dean F Bajorin;J Alfred Witjes;Jürgen E Gschwend;Michael Schenker

  • Treatment of muscle-invasive and metastatic bladder cancer: Update of the EAU guidelines

    Arnulf Stenzl;Nigel C. Cowan;Maria De Santis;Markus A. Kuczyk

  • Seven year update of an EORTC phase III trial of high-dose intensity M-VAC chemotherapy and G-CSF versus classic M-VAC in advanced urothelial tract tumours.

    C.N. Sternberg;P.H.M. de Mulder;J.H. Schornagel;C. Theodore

  • Multiparametric Magnetic Resonance Imaging for Bladder Cancer: Development of VI-RADS (Vesical Imaging-Reporting And Data System).

    Valeria Panebianco;Yoshifumi Narumi;Ersan Altun;Bernard H. Bochner

Frequent Co-Authors

Lambertus A. Kiemeney
Lambertus A. Kiemeney Radboud University
Jelle O. Barentsz
Jelle O. Barentsz Radboud University
Jack A. Schalken
Jack A. Schalken Radboud University
Arnulf Stenzl
Arnulf Stenzl University of Tübingen
Mark S. Soloway
Mark S. Soloway Memorial Hospital of South Bend
Kari Stefansson
Kari Stefansson deCODE Genetics (Iceland)
Dorine W. Swinkels
Dorine W. Swinkels Radboud University
Peter F.A. Mulders
Peter F.A. Mulders Radboud University
Richard Sylvester
Richard Sylvester European Organisation for Research and Treatment of Cancer
Unnur Thorsteinsdottir
Unnur Thorsteinsdottir deCODE Genetics (Iceland)

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

If you’re exploring a career in medicine but want flexible study options, there are several online degrees and pathways to consider. For nurses aiming for advanced practice, an easiest dnp program online can help you earn a terminal degree while balancing work and family commitments.

Many students opt for a practical, hands-on role through lpn online programs. These fast-track courses enable you to start your nursing career quickly, often in high-demand settings.

For those interested in mental health, pursuing accelerated msn psychiatric np programs allows you to specialize and qualify for advanced mental health nursing roles faster than traditional routes.

If you’re more interested in health system management and policy, an affordable healthcare administration degree online can open doors to leadership positions in hospitals and healthcare organizations.

These related online programs offer diverse entry-points into the healthcare field, and can fast-track your progress while offering flexibility and affordability.

Best Scientists Citing J. Alfred Witjes

Trending Scientists

Recently Published Articles