Ken Hirao

42 papers and 533 indexed citations i.

About

Ken Hirao is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Ken Hirao has authored 42 papers receiving a total of 533 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Surgery, 23 papers in Pulmonary and Respiratory Medicine and 21 papers in Oncology. Recurrent topics in Ken Hirao’s work include Gallbladder and Bile Duct Disorders (16 papers), Pancreatic and Hepatic Oncology Research (14 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (9 papers). Ken Hirao is often cited by papers focused on Gallbladder and Bile Duct Disorders (16 papers), Pancreatic and Hepatic Oncology Research (14 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (9 papers). Ken Hirao collaborates with scholars based in Japan and United Kingdom. Ken Hirao's co-authors include Tsuneyoshi Ogawa, Hironari Kato, Etsuji Ishida, Hirofumi Kawamoto, Osamu Mizuno, Ryo Harada, Koichiro Tsutsumi, Masakuni Fujii, Naoko Kurihara and Hirotoshi Fukatsu and has published in prestigious journals such as PLoS ONE, Radiology and European Journal of Cancer.

In The Last Decade

Co-authorship network of co-authors of Ken Hirao i

Fields of papers citing papers by Ken Hirao

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ken Hirao

Since Specialization
Citations

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