J. Alfred Witjes

43.6k citations

407 papers · 27.9k indexed · 14 hit papers · h-index 81

Urology top 0.01%
- Urological Disorders and Treatments 82
Surgery top 0.01%
- Bladder and Urothelial Cancer Treatments 275
- Urinary and Genital Oncology Studies 214
Pulmonary and Respiratory Medicine top 0.05%
- Prostate Cancer Diagnosis and Treatment 98
- Prostate Cancer Treatment and Research 74
Radiology, Nuclear Medicine and Imaging top 0.1%
- MRI in cancer diagnosis 32
Oncology top 0.5%
Rheumatology
- Urologic and reproductive health conditions 35
Epidemiology
- Urinary Tract Infections Management 30

Co-authors: Jelle O. Barentsz Richard Sylvester Lambertus A. Kiemeney Antoine G. van der Heijden María J. Ribal Nigel C. Cowan Karl‐Heinz Kurth Christina A. Hulsbergen‐van de Kaa
Cited by: Urology Surgery Pulmonary and Respiratory Medicine
Journals: The Lancet (1 paper)Journal of Clinical Oncology (11 papers)SHILAP Revista de lepidopterología (2 papers)
Partner nations: Netherlands United States Germany

In The Last Decade

J. Alfred Witjes

401 papers receiving 27.3k citations

Hit Papers

14 papers align trajectories log scale

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

2022 The Lancet
2021 European Urology
2020 European Urology
2018 European Urology
2016 European Urology
2015 European Urology
2013 European Urology
2011 Radiology
2011 Radiology
2011 European Urology
2009 European Urology
2009 European Urology
2006 European Urology
2003 European Urology

Peers

Countries citing papers authored by J. Alfred Witjes

Since Specialization

Citations

This map shows the geographic impact of J. Alfred Witjes's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Alfred Witjes with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Alfred Witjes more than expected).

Fields of papers citing papers by J. Alfred Witjes

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. Alfred Witjes. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Alfred Witjes. The network helps show where J. Alfred Witjes may publish in the future.

Co-authorship network

The 25 scholars most cited alongside J. Alfred Witjes, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J. Alfred Witjes Line = papers co-authored together J. Alfred Witjes links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Multiparametric Magnetic Resonance Imaging and Vesical Imaging-Reporting and Data System (VI-RADS) for Bladder Cancer Diagnosis and Staging: A Guide for Clinicians from the American College of Radiology VI-RADS Steering Committee European Urology ·Valeria Panebianco,Alberto Briganti,Jason A. Efstathiou,Samuel J. Galgano,Lyndon Luk,Valdair Francisco Muglia,Bernadette Redd,Maarten de Rooij,Mitsuru Takeuchi,Sungmin Woo,Hebert Alberto Vargas,J. Alfred Witjes	2025	0
2	Health-related Quality of Life During the First 4 Years After Non–Muscle-invasive Bladder Cancer Diagnosis: Results of a Large Multicentre Prospective Cohort European Urology Oncology ·Ivy Beeren,Nena E Klerks,Katja K.H. Aben,Jorg R. Oddens,J. Alfred Witjes,Lambertus A. Kiemeney,Alina Vrieling	2023	3
3	Vaccination against Extracellular Vimentin for Treatment of Urothelial Cancer of the Bladder in Client-Owned Dogs Cancers ·Diederik J. M. Engbersen,Judy R. van Beijnum,Arno Roos,Marit van Beelen,Jan David de Haan,Guy C. M. Grinwis,Jack A. Schalken,J. Alfred Witjes,Arjan W. Griffioen,Elisabeth J. M. Huijbers	2023	7
4	Intravesical BCG in patients with non-muscle invasive bladder cancer induces trained immunity and decreases respiratory infections Journal for ImmunoTherapy of Cancer ·Jelmer H. van Puffelen,Boris Novakovic,Liesbeth van Emst,Denise Kooper,Tahlita C.M. Zuiverloon,Ursula T.H. Oldenhof,J. Alfred Witjes,Tessel E. Galesloot,Alina Vrieling,Katja K.H. Aben,Lambertus A. Kiemeney,Egbert Oosterwijk,Mihai G. Netea,Joost L. Boormans,Antoine G. van der Heijden,Leo A. B. Joosten,Sita H. Vermeulen	2023	27
5	Disease-free Survival Analysis for Patients with High-risk Muscle-invasive Urothelial Carcinoma from the Randomized CheckMate 274 Trial by PD-L1 Combined Positive Score and Tumor Cell Score European Urology ·Matthew D. Galsky,Dean F. Bajorin,J. Alfred Witjes,Jürgen E. Gschwend,Yoshihiko Tomita,Federico Nasroulah,Jun Li,Sandra Collette,Begoña P. Valderrama,Marc‐Oliver Grimm,Leonard J. Appleman,Gwénaëlle Gravis,Andrea Necchi,Dingwei Ye,Frank Stenner,Megan Wind‐Rotolo,Joshua Zhang,Keziban Ünsal-Kaçmaz	2023	14
6	Cardiovascular Disease in Testicular Cancer Survivors: Identification of Risk Factors and Impact on Quality of Life Journal of Clinical Oncology ·Sjoukje Lubberts,Harmke J. Groot,Ronald de Wit,Sasja F. Mulder,J. Alfred Witjes,J. Martijn Kerst,Gerard Groenewegen,Joop D. Lefrandt,Flora E. van Leeuwen,Janine Nuver,Michael Schaapveld,Jourik A. Gietema	2023	18
7	First results from the phase 3 CheckMate 274 trial of adjuvant nivolumab vs placebo in patients who underwent radical surgery for high-risk muscle-invasive urothelial carcinoma (MIUC). Journal of Clinical Oncology ·Dean F. Bajorin,J. Alfred Witjes,Jürgen E. Gschwend,Michael Schenker,Begoña P. Valderrama,Yoshihiko Tomita,Aristotelis Bamias,Thierry Lebrét,Shahrokh F. Shariat,Se Hoon Park,Dingwei Ye,Mads Agerbæk,Sandra Collette,Keziban Ünsal-Kaçmaz,Dimitrios Zardavas,Henry Koon,Matt D. Galsky	2021	30
8	The UroLife study: protocol for a Dutch prospective cohort on lifestyle habits in relation to non-muscle-invasive bladder cancer prognosis and health-related quality of life BMJ Open ·Liesbeth de Goeij,Ellen Westhoff,J. Alfred Witjes,Katja K.H. Aben,Ellen Kampman,Lambertus A. Kiemeney,Alina Vrieling	2019	10
9	Adjuvant recMAGE-A3 Immunotherapy After Cystectomy for Muscle-invasive Bladder Cancer: Lessons Learned from the Phase 2 MAGNOLIA Clinical Trial European Urology Focus ·Peter F.A. Mulders,Luis Martínez‐Piñeiro,Axel Heidenreich,Marko Babjuk,Marc Colombel,Renzo Colombo,Piotr Radziszewski,Igor A. Korneyev,C. Surcel,P. Yakovlev,J. Alfred Witjes,Christien Caris,Raymond G. Schipper,Wim P.J. Witjes	2018	3
10	Two-year follow-up of the phase II marker lesion study of intravesical apaziquone for patients with non-muscle invasive bladder cancer World Journal of Urology ·Kees Hendricksen,Antoine G. van der Heijden,Erik B. Cornel,H. Vergunst,Theo M. de Reijke,E. Boven,Geert A.H.J. Smits,Rajiv Puri,Sigrid Gruijs,J. Alfred Witjes	2009	30
11	Thirty-Two-Channel Coil 3T Magnetic Resonance-Guided Biopsies of Prostate Tumor Suspicious Regions Identified on Multimodality 3T Magnetic Resonance Imaging: Technique and Feasibility Investigative Radiology ·Thomas Hambrock,Jurgen J. Fütterer,Henkjan Huisman,Christina A. Hulsbergen‐vandeKaa,Jean‐Paul van Basten,Inge M. van Oort,J. Alfred Witjes,Jelle O. Barentsz	2008	83
12	The past, present and future of cystoscopy: the fusion of cystoscopy and novel imaging technology British Journal of Urology ·Christopher S.D. Lee,Cheol Yong Yoon,J. Alfred Witjes	2008	43
13	Standardized Threshold Approach Using Three-Dimensional Proton Magnetic Resonance Spectroscopic Imaging in Prostate Cancer Localization of the Entire Prostate Investigative Radiology ·Jurgen J. F tterer,Tom W. J. Scheenen,Stijn W. T. P. J. Heijmink,Henkjan Huisman,Christina A. Hulsbergen‐van de Kaa,J. Alfred Witjes,Arend Heerschap,Jelle O. Barentsz	2007	64
14	Prediction of recurrence in Ta urothelial cell carcinoma by real‐time quantitative PCR analysis: A microarray validation study International Journal of Cancer ·Iman J. Schultz,Kenneth Wester,Huub Straatman,Lambertus A. Kiemeney,Marko Babjuk,Jaroslav Mareš,Johanner L. Willems,Dorine W. Swinkels,J. Alfred Witjes,Jacques B de Kok,Per‐Uno Malmström	2006	19
15	Prostate cancer: comparison of local staging accuracy of pelvic phased-array coil alone versus integrated endorectal–pelvic phased-array coils European Radiology ·Jurgen J. Fütterer,Marc Engelbrecht,Gerrit J. Jager,Robert P. Hartman,Bernard F. King,Christina A. Hulsbergen‐van de Kaa,J. Alfred Witjes,Jelle O. Barentsz	2006	124
16	The effect of an endorectal balloon and off-line correction on the interfraction systematic and random prostate position variations: A comparative study International Journal of Radiation OncologyBiologyPhysics ·Emile N.J.T. van Lin,Lisette P. van der Vight,J. Alfred Witjes,Henkjan Huisman,J.W.H. Leer,A.G. Visser	2004	80
17	Future strategies in the diagnosis, staging and treatment of bladder cancer Current Opinion in Urology ·Antoine G. van der Heijden,J. Alfred Witjes	2003	7
18	Lower incidence of urothelial cell carcinoma due to the concept of a clonal origin European Journal of Cancer ·Katja K.H. Aben,J. Alfred Witjes,J.A.A.M. van Dijck,Jack A. Schalken,André L. M. Verbeek,Lambertus A. Kiemeney	2000	7
19	Current Recommendations for the Management of Bladder Cancer Drugs ·J. Alfred Witjes	1997	21
20	Bacillus Calmette-Guérin versus mitomycin intravesical therapy in superficial bladder cancer: Results of randomized trial after 21 months of follow-up Urology ·F.M.J. Debruyne,P.M. van der Meijden,J. Alfred Witjes,M.P.H. Franssen,P. A. Steerenberg,W.H. DeJong,John Read,M.J.W. van Leeuwen,B. Hammond,R. Sylvester	1992	13

About J. Alfred Witjes

J. Alfred Witjes is a scholar working on Urology, Surgery and Pulmonary and Respiratory Medicine, having authored 407 papers that have together received 27.9k indexed citations. Recurring topics across this work include Bladder and Urothelial Cancer Treatments (275 papers), Urinary and Genital Oncology Studies (214 papers), Prostate Cancer Diagnosis and Treatment (98 papers), Urological Disorders and Treatments (82 papers), Prostate Cancer Treatment and Research (74 papers), Urologic and reproductive health conditions (35 papers), MRI in cancer diagnosis (32 papers) and Urinary Tract Infections Management (30 papers). The work is most often cited by research in Urology (5.9k citations), Surgery (17.5k citations) and Pulmonary and Respiratory Medicine (9.6k citations). J. Alfred Witjes has collaborated with scholars based in Netherlands, United States and Germany. Frequent co-authors include Jelle O. Barentsz, Richard Sylvester, Lambertus A. Kiemeney, Antoine G. van der Heijden, María J. Ribal, Nigel C. Cowan, Karl‐Heinz Kurth, Christina A. Hulsbergen‐van de Kaa, Éva Compérat and Adrian P.M. van der Meijden. Their work appears in journals such as The Lancet, Journal of Clinical Oncology and SHILAP Revista de lepidopterología.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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