J.A. Witjes

8.0k total citations
152 papers, 4.0k citations indexed

About

J.A. Witjes is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, J.A. Witjes has authored 152 papers receiving a total of 4.0k indexed citations (citations by other indexed papers that have themselves been cited), including 99 papers in Surgery, 36 papers in Pulmonary and Respiratory Medicine and 23 papers in Oncology. Recurrent topics in J.A. Witjes's work include Bladder and Urothelial Cancer Treatments (75 papers), Urinary and Genital Oncology Studies (43 papers) and Urological Disorders and Treatments (18 papers). J.A. Witjes is often cited by papers focused on Bladder and Urothelial Cancer Treatments (75 papers), Urinary and Genital Oncology Studies (43 papers) and Urological Disorders and Treatments (18 papers). J.A. Witjes collaborates with scholars based in Netherlands, United States and United Kingdom. J.A. Witjes's co-authors include Lambertus A. Kiemeney, F.M.J. Debruyne, Jelle O. Barentsz, Jack A. Schalken, José Leal, Richard Sullivan, Ramón Luengo-Fernández, J.Burton Douglass, Gerald W. Verhaegh and André L. M. Verbeek and has published in prestigious journals such as Journal of Clinical Oncology, Radiology and Clinical Cancer Research.

In The Last Decade

J.A. Witjes

137 papers receiving 3.9k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
J.A. Witjes Netherlands 35 2.3k 982 844 698 677 152 4.0k
William A. See United States 34 1.7k 0.7× 621 0.6× 1.6k 1.9× 599 0.9× 387 0.6× 179 3.8k
G. Jakse Germany 38 3.3k 1.4× 1.2k 1.2× 2.3k 2.7× 911 1.3× 1.5k 2.2× 283 6.3k
Ananya Choudhury United Kingdom 34 1.4k 0.6× 885 0.9× 1.3k 1.5× 997 1.4× 429 0.6× 214 4.1k
Marc Zerbib France 34 2.0k 0.8× 862 0.9× 2.3k 2.7× 776 1.1× 880 1.3× 262 4.7k
Simon Tanguay Canada 40 2.1k 0.9× 1.5k 1.5× 2.4k 2.8× 816 1.2× 706 1.0× 213 4.7k
Matthias D. Hofer United States 33 793 0.3× 1.4k 1.4× 1.6k 1.9× 549 0.8× 614 0.9× 121 3.9k
Heinz Koelbl Germany 42 1.6k 0.7× 903 0.9× 381 0.5× 1.2k 1.7× 924 1.4× 211 5.3k
Howard Kynaston United Kingdom 32 1.2k 0.5× 1.2k 1.2× 1.3k 1.5× 914 1.3× 482 0.7× 111 4.0k
Thierry Lebrét France 39 3.8k 1.6× 1.5k 1.5× 1.8k 2.1× 936 1.3× 2.0k 2.9× 269 6.6k
Roberto Angioli Italy 42 2.3k 1.0× 654 0.7× 474 0.6× 1.1k 1.6× 350 0.5× 286 6.3k

Countries citing papers authored by J.A. Witjes

Since Specialization
Citations

This map shows the geographic impact of J.A. 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.A. 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.A. Witjes more than expected).

Fields of papers citing papers by J.A. Witjes

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.A. 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.A. Witjes. The network helps show where J.A. Witjes may publish in the future.

Co-authorship network of co-authors of J.A. Witjes

This figure shows the co-authorship network connecting the top 25 collaborators of J.A. Witjes. A scholar is included among the top collaborators of J.A. Witjes based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J.A. Witjes. J.A. Witjes is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Lozano, Juan José, Mercedes Ingelmo‐Torres, Montserrat Domènech, et al.. (2025). Biomarker-Based Nomogram to Predict Neoadjuvant Chemotherapy Response in Muscle-Invasive Bladder Cancer. Biomedicines. 13(3). 740–740.
2.
Schenker, Michael, Begoña P. Valderrama, A. Bamias, et al.. (2025). 3068O Adjuvant nivolumab vs placebo for high-risk muscle-invasive urothelial carcinoma: 5-year efficacy and ctDNA results from CheckMate 274. Annals of Oncology. 36. S1482–S1482.
3.
Bosveld, J., Tri Q. Nguyen, Joost L. Boormans, et al.. (2024). The impact of positive surgical margins after cystectomy on oncological outcomes: a nationwide study. British Journal of Urology. 135(5). 766–774.
4.
Ramjith, Jordache, Jaap Deinum, Henri Timmers, et al.. (2022). Predicting surgical outcome in posterior retroperitoneoscopic adrenalectomy with the aid of a preoperative nomogram. Surgical Endoscopy. 36(9). 6507–6515. 3 indexed citations
5.
Daneshmand, Siamak, Iris Brummelhuis, Kamal S. Pohar, et al.. (2022). The safety, tolerability, and efficacy of a neoadjuvant gemcitabine intravesical drug delivery system (TAR-200) in muscle-invasive bladder cancer patients: a phase I trial. Urologic Oncology Seminars and Original Investigations. 40(7). 344.e1–344.e9. 18 indexed citations
6.
Wit, Ronald de, Jourik A. Gietema, Gerard Groenewegen, et al.. (2020). Incidence of metachronous contralateral testicular germ cell tumour and association with chemotherapy. European Urology Open Science. 19. e405–e406.
7.
Bruins, H.M., Erik Veskimäe, Virginia Hernández, et al.. (2020). Radical cystectomy: The significance of hospital volume and surgeon volume. A systematic review and recommendations by the EAU MIBC Guideline Panel. European Urology Open Science. 19. e1790–e1791.
8.
Wijburg, Carl, et al.. (2018). A cost-effectiveness modeling study of robot-assisted (RARC) versus open radical cystectomy (ORC) for bladder cancer to inform future research. European Urology Focus. 5(6). 1058–1065. 20 indexed citations
9.
Schout, Barbara M.A., et al.. (2012). Designing simulator-based training: An approach integrating cognitive task analysis and four-component instructional design. Medical Teacher. 34(10). e698–e707. 26 indexed citations
10.
Schout, Barbara M.A., Elisabeth J. Martens, Alexander V. Tielbeek, et al.. (2010). A Simulator for Teaching Transrectal Ultrasound Procedures. Simulation in Healthcare The Journal of the Society for Simulation in Healthcare. 5(5). 311–314. 7 indexed citations
11.
Witjes, J.A., et al.. (2009). Perioperative instillation therapy in superficial bladder cancer: is it effective regarding outcome and costs?. Current Opinion in Urology. 19(5). 511–515. 1 indexed citations
12.
Coenen, Marieke J. H., Martine Ploeg, Mascha M.V.A.P. Schijvenaars, et al.. (2008). Allelic Imbalance Analysis Using a Single-Nucleotide Polymorphism Microarray for the Detection of Bladder Cancer Recurrence. Clinical Cancer Research. 14(24). 8198–8204. 6 indexed citations
13.
Spermon, J.R., Lambertus A. Kiemeney, E.J.H. Meuleman, et al.. (2003). Fertility in men with testicular germ cell tumors. Fertility and Sterility. 79. 1543–1549. 54 indexed citations
14.
Spermon, J.R., F.M.J. Debruyne, & J.A. Witjes. (2002). Important factors in the diagnosis and primary staging of testicular tumours. Current Opinion in Urology. 12(5). 419–425. 1 indexed citations
15.
Witjes, J.A. & J.R. Spermon. (2001). Prognostic factors in clinical stage 1 non-seminomatous testicular tumours. Current Opinion in Urology. 11(5). 531–534. 3 indexed citations
16.
Witjes, J.A.. (1998). Superficial bladder cancer including T1G3 disease. European Urology. 34(2). 1–6. 1 indexed citations
17.
Poel, H.G. Van Der, Michael R. van Balken, D. H. J. Schamhart, et al.. (1998). Bladder Wash Cytology, Quantitative Cytology, and the Qualitative BTA Test in Patients with Superficial Bladder Cancer. Urology. 51(1). 44–50. 60 indexed citations
18.
Steffens, Martijn G., Otto C. Boerman, Jeannette Oosterwijk‐Wakka, et al.. (1997). Targeting of renal cell carcinoma with iodine-131-labeled chimeric monoclonal antibody G250.. Journal of Clinical Oncology. 15(4). 1529–1537. 124 indexed citations
19.
Barentsz, Jelle O., G.J. Jager, J.A. Witjes, & J. H. J. Ruijs. (1996). Primary staging of urinary bladder carcinoma: the role of MRI and a comparison with CT. European Radiology. 6(2). 129–33. 62 indexed citations
20.
Witjes, J.A., F.M.J. Debruyne, & A.P.M. van der Meijden. (1991). Treatment of Carcinoma in situ of the Urethra withIntraurethral Instillations of Bacillus Calmette-Guérin. European Urology. 20(2). 170–172. 6 indexed citations

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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