Masayasu Hamaji

45 papers and 414 indexed citations i.

About

Masayasu Hamaji is a scholar working on Surgery, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Masayasu Hamaji has authored 45 papers receiving a total of 414 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Surgery, 12 papers in Epidemiology and 10 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Masayasu Hamaji’s work include Neuroendocrine Tumor Research Advances (10 papers), Gastric Cancer Management and Outcomes (6 papers) and Pancreatic and Hepatic Oncology Research (5 papers). Masayasu Hamaji is often cited by papers focused on Neuroendocrine Tumor Research Advances (10 papers), Gastric Cancer Management and Outcomes (6 papers) and Pancreatic and Hepatic Oncology Research (5 papers). Masayasu Hamaji collaborates with scholars based in Japan and Germany. Masayasu Hamaji's co-authors include Toshirou Nishida, Kazuyasu Nakao, Tokuichiro Seki, Wataru Kamiike, Kazushi Kurozumi, Hikaru Matsuda, Yasunaru Kawashima, Masaya Tohyama, Y. Kawai and Masahiko Tsujimoto and has published in prestigious journals such as The Journal of Clinical Endocrinology & Metabolism, Annals of Surgery and Brain Research.

In The Last Decade

Co-authorship network of co-authors of Masayasu Hamaji i

Fields of papers citing papers by Masayasu Hamaji

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Masayasu Hamaji

Since Specialization
Citations

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