Masahiko Tomimatsu

2.3k total citations · 1 hit paper
20 papers, 1.8k citations indexed

About

Masahiko Tomimatsu is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Masahiko Tomimatsu has authored 20 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Hepatology, 10 papers in Epidemiology and 6 papers in Surgery. Recurrent topics in Masahiko Tomimatsu's work include Hepatitis B Virus Studies (9 papers), Hepatitis C virus research (8 papers) and Liver Disease Diagnosis and Treatment (7 papers). Masahiko Tomimatsu is often cited by papers focused on Hepatitis B Virus Studies (9 papers), Hepatitis C virus research (8 papers) and Liver Disease Diagnosis and Treatment (7 papers). Masahiko Tomimatsu collaborates with scholars based in Japan, Taiwan and Türkiye. Masahiko Tomimatsu's co-authors include Hiroshi Obata, Nobuo Okazaki, Kunihiko Ohnishi, Toshio Ohtsuki, Hiroshi Hasegawa, Yukio Nakajima, Kunio Okuda, Shin-ichiro Ohkawa, Hitoshi Endo and Hiroaki Okuda and has published in prestigious journals such as Cancer, Journal of Gastroenterology and Hepatology and Journal of Gastroenterology.

In The Last Decade

Masahiko Tomimatsu

17 papers receiving 1.8k citations

Hit Papers

Natural history of hepatocellular carcinoma and prognosis... 1985 2026 1998 2012 1985 500 1000 1.5k
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.

  1. Natural history of hepatocellular carcinoma and prognosis in relation to treatment study of 850 patients
    1985 1.6k citations Kunio Okuda, Toshio Ohtsuki et al. Cancer profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masahiko Tomimatsu Japan 9 1.5k 867 531 303 292 20 1.8k
Maurizio Tommasini Italy 16 1.6k 1.1× 1.4k 1.7× 304 0.6× 164 0.5× 297 1.0× 29 2.1k
Silvia Tremosini Spain 9 943 0.6× 624 0.7× 268 0.5× 190 0.6× 155 0.5× 11 1.3k
Claudio Zavaglia Italy 19 1.2k 0.8× 731 0.8× 283 0.5× 131 0.4× 160 0.5× 38 1.4k
Delia D’Avola Spain 25 1.2k 0.8× 726 0.8× 489 0.9× 277 0.9× 407 1.4× 60 2.1k
Yukihiro Koike Japan 14 1.9k 1.3× 1.3k 1.5× 473 0.9× 189 0.6× 251 0.9× 31 2.2k
S Yamasaki Japan 16 1.4k 0.9× 529 0.6× 841 1.6× 209 0.7× 603 2.1× 30 1.8k
Ryuichi Kita Japan 25 1.3k 0.9× 923 1.1× 370 0.7× 237 0.8× 359 1.2× 76 1.8k
Kuansheng Ma China 24 1.5k 1.0× 930 1.1× 704 1.3× 238 0.8× 395 1.4× 97 2.0k
Kun‐Ming Chan Taiwan 26 1.1k 0.8× 551 0.6× 899 1.7× 179 0.6× 461 1.6× 118 1.8k
Franco Borzio Italy 31 2.5k 1.7× 2.1k 2.5× 460 0.9× 427 1.4× 396 1.4× 52 3.1k

Countries citing papers authored by Masahiko Tomimatsu

Since Specialization
Citations

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

Fields of papers citing papers by Masahiko Tomimatsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masahiko Tomimatsu

This figure shows the co-authorship network connecting the top 25 collaborators of Masahiko Tomimatsu. A scholar is included among the top collaborators of Masahiko Tomimatsu 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 Masahiko Tomimatsu. Masahiko Tomimatsu 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.
Saitoh, Toshihito, Hiroko Otsuka, Takahiro Kawasaki, et al.. (2009). Influences of CYP2C19 polymorphism on recurrence of reflux esophagitis during proton pump inhibitor maintenance therapy.. PubMed. 56(91-92). 703–6. 27 indexed citations
2.
Fujimoto, Tomoko, et al.. (2008). Changes in the Th1/Th2 ratio during a 24‐week course of an interferon alpha‐2b plus ribavirin combination therapy for patients with chronic hepatitis C. Journal of Gastroenterology and Hepatology. 23(8pt2). e432–7. 7 indexed citations
3.
Machida, Haruhiko, et al.. (2008). Stent-graft to treat intrahepatic portosystemic venous shunt causing encephalopathy.. PubMed. 55(81). 237–40. 3 indexed citations
4.
Endo, Hitoshi, Kiyotaka Kawauchi, Masahiko Tomimatsu, et al.. (2007). Acquired Factor V Inhibitor Responsive to Corticosteroids in a Patient with Double Cancers. Internal Medicine. 46(9). 621–625. 12 indexed citations
5.
Tomimatsu, Masahiko, Yoshio Aizawa, Yoshimichi Chuganji, et al.. (2006). Treatment effects and predictors of a 24‐week course of interferon α‐2b plus ribavirin combination therapy for patients with chronic hepatitis C. Journal of Gastroenterology and Hepatology. 21(7). 1177–1183.
6.
7.
Hayashi, Mitsutoshi, et al.. (2004). Tuberculous Liver Abscess Not Associated with Lung Involvement. Internal Medicine. 43(6). 521–523. 21 indexed citations
8.
Tomimatsu, Masahiko, Hitoshi Endo, Tomoko Fujimoto, et al.. (2003). Type C chronic hepatitis with the discovery of a small hepatocellular carcinoma 7 years after successful interferon therapy. Journal of Gastroenterology. 38(4). 395–398. 6 indexed citations
9.
Nagao, Kumi, Masahiko Tomimatsu, Hitoshi Endo, Hisashi Hisatomi, & Kazumasa Hikiji. (1999). Telomerase reverse transcriptase mRNA expression and telomerase activity in hepatocellular carcinoma. Journal of Gastroenterology. 34(1). 83–87. 39 indexed citations
10.
Tomimatsu, Masahiko, Hitoshi Endou, Haruki Takahashi, et al.. (1997). Negative strand of hepatitis C virus RNA in the liver of patients with chronic hepatitis C after interferon treatment. Journal of Gastroenterology and Hepatology. 12(9-10). 629–632. 9 indexed citations
11.
12.
Özyılkan, E, Özgür Özyılkan, D. Fırat, H Telatar, & Masahiko Tomimatsu. (1994). Hepatitis C virus antibody in patients with primary liver cancer (hepatocellular carcinoma, cholangiocarcinoma, and combined hepatocellular-cholangiocarcinoma) in Japan. Cancer. 73(7). 2002–2003. 5 indexed citations
13.
Tomimatsu, Masahiko, Noriko Ishiguro, Makiko Taniai, et al.. (1993). Hepatitis C virus antibody in patients with primary liver cancer (hepatocellular carcinoma, cholangiocarcinoma, and combined hepatocellular-cholangiocarcinoma) in Japan. Cancer. 72(3). 683–688. 89 indexed citations
14.
Tomimatsu, Masahiko, Hiroaki Okuda, Akiko Saito, et al.. (1989). A case of biliary cystadenocarcinoma with morphologic and histochemical features of hepatocytes. Cancer. 64(6). 1323–1328. 8 indexed citations
15.
16.
17.
Okuda, Hiroaki, Hiroshi Obata, Akiko Saito, et al.. (1986). Hepatocellular carcinoma not associated with cirrhosis. A clinicopathological study in 41 patients including 29 resected cases. Journal of Gastroenterology and Hepatology. 1(2). 129–137. 1 indexed citations
18.
Hashimoto, Etsuko, Hiroshi Obata, Toshimi Nakanishi, et al.. (1985). HLA antigens and anti-HBs response to hepatitis B vaccine.. Kanzo. 26(2). 157–164. 6 indexed citations
19.
Okuda, Kunio, Toshio Ohtsuki, Hiroshi Obata, et al.. (1985). Natural history of hepatocellular carcinoma and prognosis in relation to treatment study of 850 patients. Cancer. 56(4). 918–928. 1554 indexed citations breakdown →
20.
Chiou, Shue‐Shian, Hiroshi Obata, Yoji Motoike, et al.. (1984). Hepatitis viruses in southern taiwan—mass survey of 2985 inhabitants. Gastroenterologia Japonica. 19(4). 344–350. 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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