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

J. Alfred Witjes publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where J. Alfred Witjes sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 677 publications — 79th percentile

79% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

J. Alfred Witjes D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where J. Alfred Witjes sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 115 D-Index — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

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)

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