Oka S

48 papers and 420 indexed citations
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About

Oka S is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Oka S has authored 48 papers receiving a total of 420 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Pulmonary and Respiratory Medicine, 15 papers in Surgery and 11 papers in Oncology. Recurrent topics in Oka S’s work include Gastric Cancer Management and Outcomes (22 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (10 papers). Oka S is often cited by papers focused on Gastric Cancer Management and Outcomes (22 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (10 papers). Oka S collaborates with scholars based in Japan, United States and China. Oka S's co-authors include Nobuaki Kaibara, Shunichi Tsujitani, Michio Maeta, Masahide Ikeguchi, Yoshihito Gomyo, M Ikeguchi, Hiroaki Saito, Tetsu Fukunaga, Akira Kondo and Hajime Orita and has published in prestigious journals such as British Journal of Cancer, The Journal of Pathology and The Annals of Thoracic Surgery.

In The Last Decade

Co-authorship network of co-authors of Oka S

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

Fields of papers citing papers by Oka S

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Oka S

Since Specialization
Citations

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