Fred Witjes

2.3k citations
29 papers · 1.6k indexed · h-index 11

Fred Witjes

28 papers receiving 1.5k citations

Peers

Fred Witjes
Comparison fields: 5 of 90
  • Urology 211
  • Surgery 1.1k
  • Oncology 503
  • Pulmonary and Respiratory Medicine 389
  • Pediatrics, Perinatology and Child Health 123
Replace Vignesh T. Packiam with:
Vignesh T. Packiam United States
Frédéric D. Birkhäuser Switzerland
C. van de Beek Netherlands
Roberto Casella Switzerland
W. Oosterlinck Belgium
Massimo Iafrate Italy
Pierfrancesco Bassi Italy
Filippo Pederzoli Italy
Dov Engelstein Israel
K. Eugene United States
Fred Witjes relative to Vignesh T. Packiam United States Vignesh T. Packiam's profile →
Citations per field
00.5×2.9×
Vignesh T. Packiam · 1×
Citations per year

Countries citing papers authored by Fred Witjes

Since Specialization
Citations

This map shows the geographic impact of Fred 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 Fred Witjes with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fred Witjes more than expected).

Fields of papers citing papers by Fred Witjes

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Fred 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 Fred Witjes Line = papers co-authored together Fred Witjes links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown
#Work
1 20202
2 20209
3 20191
4 20176
5 201626
6 20165
7 201311
8 20132
9 201110
10 2009142
11 20081
12 200747
13 2006246
14 20054
15 20056
16 2005230
17 20048
18 2001468
19 199185
20 198912

About Fred Witjes

Fred Witjes is a scholar working on Urology, Surgery and Oncology, having authored 29 papers that have together received 1.6k indexed citations. Recurring topics across this work include Bladder and Urothelial Cancer Treatments (21 papers), Urinary and Genital Oncology Studies (13 papers), Cancer Treatment and Pharmacology (4 papers), Urinary Tract Infections Management (4 papers), Prostate Cancer Treatment and Research (4 papers), Cancer Immunotherapy and Biomarkers (3 papers), Urological Disorders and Treatments (3 papers) and Cancer Research and Treatments (2 papers). The work is most often cited by research in Urology (211 citations), Surgery (1.1k citations) and Oncology (503 citations). Fred Witjes has collaborated with scholars based in Netherlands, United States and Italy. Frequent co-authors include Gijs Bleijenberg, Stans Verhagen, Marieke Gielissen, Laurence Collette, Michele Spina, Christine Théodore, A.T. van Oosterom, C.J. van Groeningen, Christine de Balincourt and Jan H. Schornagel. Their work appears in journals such as Journal of Clinical Oncology, The Journal of Urology, European Urology, Annals of Oncology and International Journal of Hyperthermia.

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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2026