Kenji Hirai

55 papers and 549 indexed citations i.

About

Kenji Hirai is a scholar working on Epidemiology, Hepatology and Physiology. According to data from OpenAlex, Kenji Hirai has authored 55 papers receiving a total of 549 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Epidemiology, 14 papers in Hepatology and 10 papers in Physiology. Recurrent topics in Kenji Hirai’s work include Liver Disease Diagnosis and Treatment (10 papers), Hepatocellular Carcinoma Treatment and Prognosis (10 papers) and Herpesvirus Infections and Treatments (4 papers). Kenji Hirai is often cited by papers focused on Liver Disease Diagnosis and Treatment (10 papers), Hepatocellular Carcinoma Treatment and Prognosis (10 papers) and Herpesvirus Infections and Treatments (4 papers). Kenji Hirai collaborates with scholars based in Japan, United States and United Kingdom. Kenji Hirai's co-authors include Kyuichi Tanikawa, Yoshinori Aoki, Shiro Kato, Kenji Sakata, Vittorio Defendi, Yasuo MAJIMA, Kazuyoshi Ikuta, Shigeharu Ueda, Louis S. Diamond and M Kojiro and has published in prestigious journals such as Nature, Hepatology and Endocrinology.

In The Last Decade

Co-authorship network of co-authors of Kenji Hirai i

Fields of papers citing papers by Kenji Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kenji Hirai

Since Specialization
Citations

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

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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2025