H Kumada

452 total citations
27 papers, 357 citations indexed

About

H Kumada is a scholar working on Hepatology, Epidemiology and Immunology. According to data from OpenAlex, H Kumada has authored 27 papers receiving a total of 357 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Hepatology, 14 papers in Epidemiology and 5 papers in Immunology. Recurrent topics in H Kumada's work include Hepatitis C virus research (15 papers), Hepatitis B Virus Studies (9 papers) and Liver Disease Diagnosis and Treatment (7 papers). H Kumada is often cited by papers focused on Hepatitis C virus research (15 papers), Hepatitis B Virus Studies (9 papers) and Liver Disease Diagnosis and Treatment (7 papers). H Kumada collaborates with scholars based in Japan, France and Italy. H Kumada's co-authors include Kazuaki Chayama, Fumitaka Suzuki, Norio Akuta, Yusuke Nakamura, Michio Imamura, Hiroshi Abe, Naoyuki Kamatani, C. Nelson Hayes, Daiki Miki and Akihito Tsubota and has published in prestigious journals such as Journal of Clinical Oncology, Clinical Infectious Diseases and Gut.

In The Last Decade

H Kumada

26 papers receiving 339 citations

Peers

H Kumada
J. H. Hoofnagle United States
Nobutoshi Komatsu Japan
T. Gerlach Germany
Namiki Izumi Japan
J Fehr Germany
D. Petruzzellis Italy
W.O. Böcher Germany
M. Maynard-Muet France
Zu-Yau Lin Taiwan
Norio Hayashi Japan
J. H. Hoofnagle United States
H Kumada
Citations per year, relative to H Kumada H Kumada (= 1×) peers J. H. Hoofnagle

Countries citing papers authored by H Kumada

Since Specialization
Citations

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

Fields of papers citing papers by H Kumada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H Kumada

This figure shows the co-authorship network connecting the top 25 collaborators of H Kumada. A scholar is included among the top collaborators of H Kumada 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 H Kumada. H Kumada 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.
Tateishi, Ryosuke, Takeshi Okanoue, Kendo Kiyosawa, et al.. (2014). P572 INSULIN USE IS RELATED TO THE DEVELOPMENT OF HEPATOCELLULAR CARCINOMA AT YOUNGER AGE WITH NON-VIRAL ETIOLOGY. Journal of Hepatology. 60(1). S260–S260. 1 indexed citations
2.
3.
Karino, Yoshiyasu, Itaru Ozeki, Jouji Toyota, et al.. (2011). 1330 IL28B GENOTYPE MAJOR AND RELAPSE OF PREVIOUS PEG-IFN/RBV THERAPY ARE THE CONVINCING PREDICTOR OF SUSTAINED VIROLOGICAL RESPONSE IN TELAPREVIR WITH PEG-IFN/RBV THERAPY. Journal of Hepatology. 54. S525–S525. 2 indexed citations
4.
5.
Hayes, C. Nelson, Norio Akuta, Fumitaka Suzuki, et al.. (2010). HCV substitutions and IL28B polymorphisms on outcome of peg-interferon plus ribavirin combination therapy. Gut. 60(2). 261–267. 83 indexed citations
6.
Okita, Kohei, Osamu Matsui, H Kumada, et al.. (2010). Effect of peretinoin on recurrence of hepatocellular carcinoma (HCC): Results of a phase II/III randomized placebo-controlled trial.. Journal of Clinical Oncology. 28(15_suppl). 4024–4024. 13 indexed citations
7.
Sakai, Toshitaka, S Iino, Masako Omata, et al.. (2006). Alpha-2a (40KD) (PEGASYS®) plus ribavirin (COPEGUS®) in treatment naive japanese chronic hepatitis C patients: A randomised, double-blind, multicentre, phase iii trial. Journal of Hepatology. 44. S224–S225. 4 indexed citations
8.
Ide, Tatsuya, Ryukichi Kumashiro, H Kumada, et al.. (2005). Timing of interferon therapy and sources of infection in patients with acute hepatitis C. Hepatology Research. 34(1). 35–40. 8 indexed citations
9.
Suzuki, Fumitaka, Y Arase, Yoshiyuki Suzuki, et al.. (2004). Single nucleotide polymorphism of the MxA gene promoter influences the response to interferon monotherapy in patients with hepatitis C viral infection. Journal of Viral Hepatitis. 11(3). 271–276. 59 indexed citations
10.
Sugauchi, Fuminaka, H Kumada, Hiroshi Sakugawa, et al.. (2004). Two Subtypes of Genotype B (Ba and Bj) of Hepatitis B Virus in Japan. Clinical Infectious Diseases. 38(9). 1222–1228. 61 indexed citations
11.
Ikeda, Keiichi, Y Arase, & H Kumada. (2001). [Hepatocellular carcinogenesis and prognosis of elderly patients with chronic hepatitis type C].. PubMed. 59(7). 1338–44. 1 indexed citations
12.
Tanabashi, Shinobu, et al.. (1996). [A case of chronic hepatitis complicated by subacute thyroiditis during beta-interferon treatment].. PubMed. 93(7). 496–500. 3 indexed citations
13.
Harihara, Yasushi, et al.. (1994). Interferon therapy in renal allograft recipients with chronic hepatitis C.. PubMed. 26(4). 2075–2075. 26 indexed citations
14.
Iijima, Toshio, et al.. (1993). Transmission of hepatitis C virus among sexually transmitted disease high risk groups. International Hepatology Communications. 1(5). 267–271. 1 indexed citations
15.
Arase, Yasuji, H Kumada, Kazuaki Chayama, et al.. (1992). Alanine aminotransferase and HCV-RNA responses following interferon therapy of HCV-RNA positive chronic hepatitis. Gastroenterologia Japonica. 27(5). 646–651. 6 indexed citations
16.
Chayama, Kazuaki, Yoshitaka Arase, Shinobu Saito, et al.. (1991). [Clinical features and viral markers in patients with chronic hepatitis positive for both HBs antigen and anti-C-100 antibody].. PubMed. 88(9). 2113–8. 1 indexed citations
17.
Kumada, H, et al.. (1989). [Remission state and five-year survival after transcatheter arterial embolization therapy in patients with hepatocellular carcinoma].. PubMed. 86(9). 2215–22. 1 indexed citations
18.
Ikeda, Kimimasa, et al.. (1986). [Repeated transcatheter arterial embolization therapy of hepatocellular carcinoma].. PubMed. 83(12). 2563–70. 2 indexed citations
19.
Nakao, Y, Hideo Matsumoto, Tokiko Miyazaki, et al.. (1983). Primary hepatocellular carcinoma and IgG heavy chain allotypes.. PubMed. 52(3). 493–8. 7 indexed citations
20.
Kumada, H, et al.. (1970). studies on the bsp metabolism: Conjugated bsp in the bile. Gastroenterologia Japonica. 5(1). 59–59. 4 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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