R. Simak

798 total citations
22 papers, 632 citations indexed

About

R. Simak is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Epidemiology. According to data from OpenAlex, R. Simak has authored 22 papers receiving a total of 632 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Pulmonary and Respiratory Medicine, 7 papers in Surgery and 7 papers in Epidemiology. Recurrent topics in R. Simak's work include Prostate Cancer Diagnosis and Treatment (6 papers), Prostate Cancer Treatment and Research (6 papers) and Bladder and Urothelial Cancer Treatments (5 papers). R. Simak is often cited by papers focused on Prostate Cancer Diagnosis and Treatment (6 papers), Prostate Cancer Treatment and Research (6 papers) and Bladder and Urothelial Cancer Treatments (5 papers). R. Simak collaborates with scholars based in Austria, United States and Germany. R. Simak's co-authors include Ulrich Maier, Michael Marberger, Martin Susani, Claus Riedl, Stefan A. Loening, H Pflueger, Frank Koenig, N. Neuhold, Lukas K. Daha and Heinz Pflüger and has published in prestigious journals such as The Journal of Urology, European Urology and Journal of Clinical Pathology.

In The Last Decade

R. Simak

21 papers receiving 601 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Simak Austria 11 281 199 135 115 93 22 632
A. Katzenwadel Germany 13 228 0.8× 82 0.4× 133 1.0× 117 1.0× 48 0.5× 23 548
Hayahito Nomi Japan 14 172 0.6× 147 0.7× 246 1.8× 109 0.9× 56 0.6× 52 627
Kiranpreet Khurana United States 9 419 1.5× 126 0.6× 109 0.8× 46 0.4× 126 1.4× 24 702
Georgi Guruli United States 13 118 0.4× 248 1.2× 154 1.1× 121 1.1× 30 0.3× 30 589
Bohyun Kim South Korea 16 282 1.0× 288 1.4× 366 2.7× 54 0.5× 52 0.6× 42 947
K.-H. Bichler Germany 8 101 0.4× 99 0.5× 127 0.9× 39 0.3× 32 0.3× 38 318
Hironori Ishida Japan 14 211 0.8× 213 1.1× 222 1.6× 17 0.1× 34 0.4× 55 716
Shinji Kurosaka Japan 14 185 0.7× 93 0.5× 123 0.9× 38 0.3× 26 0.3× 29 406
Longwang Wang China 12 154 0.5× 52 0.3× 263 1.9× 47 0.4× 44 0.5× 25 461
Shohei Ishida Japan 12 115 0.4× 24 0.1× 89 0.7× 83 0.7× 94 1.0× 45 458

Countries citing papers authored by R. Simak

Since Specialization
Citations

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

Fields of papers citing papers by R. Simak

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Simak

This figure shows the co-authorship network connecting the top 25 collaborators of R. Simak. A scholar is included among the top collaborators of R. Simak 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 R. Simak. R. Simak 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.
Daha, Lukas K., et al.. (2008). The effects of intravesical pentosanpolysulfate treatment on the symptoms of patients with bladder pain syndrome/interstitial cystitis: preliminary results. International Urogynecology Journal. 19(7). 987–990. 20 indexed citations
2.
Daha, Lukas K., et al.. (2008). Effect of intravesical glycosaminoglycan substitution therapy on bladder pain syndrome/interstitial cystitis, bladder capacity and potassium sensitivity. Scandinavian Journal of Urology and Nephrology. 42(4). 369–372. 14 indexed citations
4.
Daha, Lukas K., et al.. (2001). Das nephrogene Adenom im Urethral-Divertikel und im Harnleiter. Aktuelle Urologie. 32(6). 379–380.
5.
Riedl, Claus, et al.. (2001). FLUORESCENCE ENDOSCOPY WITH 5-AMINOLEVULINIC ACID REDUCES EARLY RECURRENCE RATE IN SUPERFICIAL BLADDER CANCER. The Journal of Urology. 165(4). 1121–1123. 111 indexed citations
6.
Simak, R., et al.. (2001). Die Wertigkeit der 2nd look transurethralen Elektroresektion beim oberflächlichen Blasenkarzinom. Aktuelle Urologie. 32(4). 173–177. 5 indexed citations
7.
Riedl, Claus, et al.. (2001). FLUORESCENCE ENDOSCOPY WITH 5-AMINOLEVULINIC ACID REDUCES EARLY RECURRENCE RATE IN SUPERFICIAL BLADDER CANCER. The Journal of Urology. 1121–1123. 8 indexed citations
8.
Hahn, Daniela, R. Simak, Georg Steiner, et al.. (2000). EXPRESSION OF THE VEGF-RECEPTOR Flt-1 IN BENIGN, PREMALIGNANT AND MALIGNANT PROSTATE TISSUES. The Journal of Urology. 164(2). 506–510. 48 indexed citations
9.
Djavan, Bob, et al.. (1999). Predictability and significance of multifocal prostate cancer in the radical prostatectomy specimen.. PubMed. 5(3). 139–42. 96 indexed citations
10.
Hofbauer, J., Susanne Fang-Kircher, G Steiner, et al.. (1998). N  -Acetylneuraminic acids (nana): a potential key in renal calculogenesis. Urological Research. 26(1). 49–56. 10 indexed citations
11.
Mian, Christine, Stephan Madersbacher, Ulrich Maier, & R. Simak. (1996). Validation of a 10-Minute DipstickTest for Serum Prostate-SpecificAntigen. European Urology. 30(4). 446–450. 16 indexed citations
12.
Simak, R., H. Wiener, Martin Susani, et al.. (1996). Cytophotometry in the Monitoringof Bladder Cancer underIntravesical Chemotherapy. European Urology. 29(4). 391–398. 4 indexed citations
13.
Maier, Ulrich, K. Höbarth, & R. Simak. (1996). Primary metastatic carcinoma of the prostate in younger men: a plea to think over usual therapeutic strategies.. PubMed. 29(2). 221–3. 3 indexed citations
14.
Maier, Ulrich, R. Simak, & N. Neuhold. (1995). The clinical value of urinary cytology: 12 years of experience with 615 patients.. Journal of Clinical Pathology. 48(4). 314–317. 59 indexed citations
15.
Cohen, David, R. Simak, William R. Fair, et al.. (1994). Expression of Transforming Growth Factor-α and the Epidermal Growth Factor Receptor in Human Prostate Tissues. The Journal of Urology. 152(6 Part 1). 2120–2124. 78 indexed citations
16.
Simak, R., Stephan Madersbacher, Zuo‐Feng Zhang, & Ulrich Maier. (1993). The Impact of Ejaculation on Serum Prostate Specific Antigen. The Journal of Urology. 150(3). 895–897. 46 indexed citations
18.
Traindl, O., Erich Pohanka, K. Höbarth, et al.. (1992). High incidence of significant bacteriuria in kidney graft recipients with triple therapy.. PubMed. 24(1). 289–91. 2 indexed citations
19.
Maier, Ulrich & R. Simak. (1990). Gamma‐seminoprotein—a New Tumour Marker in Prostatic Cancer?: Results of a Pilot Study. British Journal of Urology. 65(5). 509–512. 2 indexed citations
20.
Maier, Ulrich, et al.. (1990). Estramustine Phosphate in Secondary Hormone-ResistantCarcinoma of the Prostate. European Urology. 17(3). 216–218. 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026