Hirokazu Oyamada

38 papers and 406 indexed citations i.

About

Hirokazu Oyamada is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Hirokazu Oyamada has authored 38 papers receiving a total of 406 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Surgery, 9 papers in Pulmonary and Respiratory Medicine and 8 papers in Epidemiology. Recurrent topics in Hirokazu Oyamada’s work include Management of Mesenteric Ischemia and Aneurysms (4 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Gastroesophageal reflux and treatments (3 papers). Hirokazu Oyamada is often cited by papers focused on Management of Mesenteric Ischemia and Aneurysms (4 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Gastroesophageal reflux and treatments (3 papers). Hirokazu Oyamada collaborates with scholars based in Japan and United States. Hirokazu Oyamada's co-authors include Motoharu Kondo, Toshikazu Yoshikawa, Yuji Naito, Yutaka Morita, Tomoyuki Yoneta, Shuji Takahashi, Shigenobu Ueda, Shigeru Sugino, Norimasa Yoshida and Motoharu Kondo and has published in prestigious journals such as Scientific Reports, Current Pharmaceutical Design and Digestive Diseases and Sciences.

In The Last Decade

Co-authorship network of co-authors of Hirokazu Oyamada i

Fields of papers citing papers by Hirokazu Oyamada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hirokazu Oyamada

Since Specialization
Citations

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