Shoji Samma

874 total citations
81 papers, 664 citations indexed

About

Shoji Samma is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Molecular Biology. According to data from OpenAlex, Shoji Samma has authored 81 papers receiving a total of 664 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Surgery, 26 papers in Pulmonary and Respiratory Medicine and 16 papers in Molecular Biology. Recurrent topics in Shoji Samma's work include Bladder and Urothelial Cancer Treatments (25 papers), Urinary and Genital Oncology Studies (15 papers) and Prostate Cancer Diagnosis and Treatment (12 papers). Shoji Samma is often cited by papers focused on Bladder and Urothelial Cancer Treatments (25 papers), Urinary and Genital Oncology Studies (15 papers) and Prostate Cancer Diagnosis and Treatment (12 papers). Shoji Samma collaborates with scholars based in Japan and United States. Shoji Samma's co-authors include Ryoichi Oyasu, Yoshihiko Hirao, Akihide Hirayama, Kiyohide Fujimoto, Kazumasa Torimoto, Yukio Homma, Shinji Fukui, Nobumichi Tanaka, Seiichiro Ozono and Katsunori Yoshida and has published in prestigious journals such as Cancer, Kidney International and The Journal of Urology.

In The Last Decade

Shoji Samma

77 papers receiving 642 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Shoji Samma Japan 15 258 237 189 162 93 81 664
Takehisa Onishi Japan 13 180 0.7× 158 0.7× 152 0.8× 69 0.4× 131 1.4× 44 500
Pier Francesco Bassi Italy 17 214 0.8× 419 1.8× 245 1.3× 219 1.4× 117 1.3× 63 834
Dimitrios Delakas Greece 13 287 1.1× 212 0.9× 159 0.8× 58 0.4× 69 0.7× 24 559
Shigehiko Koga Japan 15 242 0.9× 148 0.6× 240 1.3× 44 0.3× 150 1.6× 35 637
J. Erik Busby United States 16 350 1.4× 582 2.5× 207 1.1× 263 1.6× 120 1.3× 27 1.1k
Chao Cai China 17 265 1.0× 136 0.6× 261 1.4× 46 0.3× 176 1.9× 48 768
Motoyuki Masai Japan 19 686 2.7× 102 0.4× 320 1.7× 69 0.4× 104 1.1× 62 1.0k
Łukasz Zapała Poland 15 158 0.6× 234 1.0× 146 0.8× 91 0.6× 150 1.6× 69 600
Haruhiko Ueda Japan 16 130 0.5× 264 1.1× 133 0.7× 18 0.1× 82 0.9× 44 674
K. F. KYLE United Kingdom 14 122 0.5× 195 0.8× 53 0.3× 55 0.3× 129 1.4× 21 534

Countries citing papers authored by Shoji Samma

Since Specialization
Citations

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

Fields of papers citing papers by Shoji Samma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Shoji Samma

This figure shows the co-authorship network connecting the top 25 collaborators of Shoji Samma. A scholar is included among the top collaborators of Shoji Samma 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 Shoji Samma. Shoji Samma 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.
Miyake, Makito, Daisuke Gotoh, Yoshiaki Matsumura, et al.. (2019). The diagnostic utility of retroperitoneoscopic tissue biopsy for unresectable retroperitoneal lesions excluding urogenital cancers. World Journal of Surgical Oncology. 17(1). 35–35. 3 indexed citations
2.
Torimoto, Kazumasa, Yoshihiro Matsumoto, Daisuke Gotoh, et al.. (2018). Overactive bladder induces transient hypertension. BMC Research Notes. 11(1). 196–196. 7 indexed citations
4.
Fukui, Shinji, Katsuya Aoki, Keiji Shimada, & Shoji Samma. (2015). Acute Scrotum Caused by Hernia Sac Torsion. Urology. 89. 126–128. 4 indexed citations
5.
Kuwada, Masaomi, Yoshitomo Chihara, Yi Lou, et al.. (2014). Novel missense mutation in the FH gene in familial renal cell cancer patients lacking cutaneous leiomyomas. BMC Research Notes. 7(1). 203–203. 11 indexed citations
6.
Torimoto, Kazumasa, Shoji Samma, Yoshitomo Chihara, et al.. (2011). The Effects of Androgen Deprivation Therapy on Lipid Metabolism and Body Composition in Japanese Patients with Prostate Cancer. Japanese Journal of Clinical Oncology. 41(4). 577–581. 25 indexed citations
8.
Kuwada, Masaomi, et al.. (2009). URETHROVESICAL FOREIGN BODY IN ADOLESCENT BOYS: REPORT OF TWO CASES. The Japanese Journal of Urology. 100(6). 632–634. 2 indexed citations
9.
Hirayama, Akihide, Shoji Samma, Akira Yamaguchi, et al.. (2003). Alpha‐blocker test: Alternative to pressure–flow study of bladder outlet obstruction and detrusor contractility in patients without an enlarged prostate. International Journal of Urology. 11(1). 20–25. 1 indexed citations
10.
Samma, Shoji, et al.. (2002). Reticulocyte hemoglobin content as a marker of iron status in patients receiving maintenance hemodialysis. Clinical and Experimental Nephrology. 6(3). 147–153. 3 indexed citations
11.
Fujimoto, Ken, et al.. (2002). Spontaneously ruptured multilocular cystic nephroma. International Journal of Urology. 9(3). 183–186. 12 indexed citations
12.
Akiyama, Tatsuya, et al.. (2001). Renal arteriovenous fistula developing after tumor enucleation using a microwave tissue coagulator. International Journal of Urology. 8(10). 568–571. 8 indexed citations
13.
Fujimoto, Ken, et al.. (2000). Urachal tuberculosis. International Journal of Urology. 7(7). 274–276. 3 indexed citations
14.
Okamoto, Shingo, Yukiko Izumi, Akiko Hosokawa, et al.. (1998). AN ADULT CASE OF CONGENITAL ADRENAL HYPERPLASIA DUE TO 21-HYDROXYLASE DEFICIENCY ASSOCIATED WITH BILATERAL ADRENAL MYELOLIPOMA : AN 8-YEAR OBSERVATION OF CLINICAL CHARACTERISTICS DURING STEROID REPLACEMENT THERAPY. 49(2). 147–155. 1 indexed citations
15.
17.
Samma, Shoji, Kazushige Uchida, Jerome Seidenfeld, & Ryoichi Oyasu. (1990). Effects of ?-difluromethylornithine on the development of deeply invasive urinary bladder carcinomas in mice. Urological Research. 18(4). 277–280. 5 indexed citations
18.
Noguchi, Sumio, Yoshiaki Yura, Osamu Hayashi, Shoji Samma, & Ryoichi Oyasu. (1989). Effects of urinary transferrin and ornithine decarboxylase-inducing fraction on rat bladder carcinogenesis. Cancer Letters. 45(1). 65–70. 1 indexed citations
19.
Okajima, Eigoro, Seiichiro Ozono, Yoshihiko Hirao, et al.. (1989). Neoadjuvant Therapy for Locally Invasive Bladder Cancer. Urologia Internationalis. 44(6). 332–337. 2 indexed citations
20.
Takahashi, S, Hitoshi Momose, Kinro Sasaki, et al.. (1987). Effects of single chemotherapeutic agents on development of urinary bladder tumor induced by N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN) in rats. Urological Research. 15(6). 329–34. 10 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