Takehiro Okabayashi

203 papers and 3.6k indexed citations
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About

Takehiro Okabayashi is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Takehiro Okabayashi has authored 203 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 103 papers in Surgery, 74 papers in Oncology and 73 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Takehiro Okabayashi’s work include Pancreatic and Hepatic Oncology Research (47 papers), Gastric Cancer Management and Outcomes (37 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (24 papers). Takehiro Okabayashi is often cited by papers focused on Pancreatic and Hepatic Oncology Research (47 papers), Gastric Cancer Management and Outcomes (37 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (24 papers). Takehiro Okabayashi collaborates with scholars based in Japan, United States and China. Takehiro Okabayashi's co-authors include Kazuhiro Hanazaki, Michiya Kobayashi, Hiromichi Maeda, Takeki Sugimoto, Tsutomu Namikawa, Isao Nishimori, Yasuo Shima, Ken Okamoto, Tatsuaki Sumiyoshi and Tomoaki Yatabe and has published in prestigious journals such as Diabetes Care, Cancer and Annals of Surgery.

In The Last Decade

Co-authorship network of co-authors of Takehiro Okabayashi

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

Fields of papers citing papers by Takehiro Okabayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Takehiro Okabayashi

Since Specialization
Citations

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