Keiya Okamura

48 total papers · 1.3k total citations
19 papers, 644 citations indexed

About

Keiya Okamura is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Keiya Okamura has authored 19 papers receiving a total of 644 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Surgery, 7 papers in Oncology and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Keiya Okamura's work include Pancreatitis Pathology and Treatment (8 papers), Pancreatic and Hepatic Oncology Research (5 papers) and Pediatric Hepatobiliary Diseases and Treatments (5 papers). Keiya Okamura is often cited by papers focused on Pancreatitis Pathology and Treatment (8 papers), Pancreatic and Hepatic Oncology Research (5 papers) and Pediatric Hepatobiliary Diseases and Treatments (5 papers). Keiya Okamura collaborates with scholars based in Japan and United States. Keiya Okamura's co-authors include Kenji Hirano, Hiroyuki Watanabe, Keisuke Yamakita, Fumihiko Okumura, Kazuichi Okazaki, Takamichi Ito, Tamaki Ichiya, Masako Omata, Atsushi Kanno and T. Níshikaẃa and has published in prestigious journals such as Gut, British Journal of Cancer and The American Journal of Gastroenterology.

In The Last Decade

Keiya Okamura

15 papers receiving 631 citations

Hit Papers

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Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Keiya Okamura 566 507 426 62 52 19 644
Wei Lin 488 0.9× 313 0.6× 359 0.8× 60 1.0× 29 0.6× 15 585
Hidetaka Yajima 549 1.0× 365 0.7× 433 1.0× 64 1.0× 56 1.1× 22 652
Tamaki Ichiya 477 0.8× 497 1.0× 384 0.9× 61 1.0× 64 1.2× 13 658
Ikuo Tabata 448 0.8× 554 1.1× 309 0.7× 22 0.4× 147 2.8× 13 646
Keisuke Yamakita 468 0.8× 432 0.9× 367 0.9× 173 2.8× 78 1.5× 11 674
Stephen Coleman 611 1.1× 482 1.0× 365 0.9× 31 0.5× 9 0.2× 14 706
Yayoi Ozaki 496 0.9× 498 1.0× 371 0.9× 38 0.6× 78 1.5× 15 636
Patrick de Geeter 229 0.4× 356 0.7× 112 0.3× 44 0.7× 80 1.5× 24 629
Nikki L. Neubauer 107 0.2× 206 0.4× 115 0.3× 52 0.8× 85 1.6× 23 640
Guenter Kloeppel 257 0.5× 385 0.8× 363 0.9× 41 0.7× 325 6.3× 15 645

Countries citing papers authored by Keiya Okamura

Since Specialization
Citations

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

Fields of papers citing papers by Keiya Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiya Okamura

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

All Works

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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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