Fumihiko Hirai

101 papers and 1.8k indexed citations i.

About

Fumihiko Hirai is a scholar working on Oncology, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Fumihiko Hirai has authored 101 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 73 papers in Oncology, 72 papers in Pulmonary and Respiratory Medicine and 13 papers in Epidemiology. Recurrent topics in Fumihiko Hirai’s work include Lung Cancer Treatments and Mutations (55 papers), Lung Cancer Research Studies (35 papers) and Lung Cancer Diagnosis and Treatment (29 papers). Fumihiko Hirai is often cited by papers focused on Lung Cancer Treatments and Mutations (55 papers), Lung Cancer Research Studies (35 papers) and Lung Cancer Diagnosis and Treatment (29 papers). Fumihiko Hirai collaborates with scholars based in Japan, United Kingdom and United States. Fumihiko Hirai's co-authors include Gouji Toyokawa, Takashi Seto, Yukito Ichinose, Mitsuhiro Takenoyama, Tetsuzo Tagawa, Masafumi Yamaguchi, Kaname Nosaki, Yoshihiko Maehara, Shinkichi Takamori and Mototsugu Shimokawa and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Annals of Oncology.

In The Last Decade

Co-authorship network of co-authors of Fumihiko Hirai

This figure shows the co-authorship network connecting the top 25 collaborators of Fumihiko Hirai. A scholar is included among the top collaborators of Fumihiko Hirai 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 Fumihiko Hirai. Fumihiko Hirai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Fumihiko Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Fumihiko Hirai

Since Specialization
Citations

This map shows the geographic impact of Fumihiko 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 Fumihiko Hirai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fumihiko 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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2026