Masayasu Koyama

120 papers and 2.1k indexed citations i.

About

Masayasu Koyama is a scholar working on Immunology, Obstetrics and Gynecology and Surgery. According to data from OpenAlex, Masayasu Koyama has authored 120 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Immunology, 27 papers in Obstetrics and Gynecology and 26 papers in Surgery. Recurrent topics in Masayasu Koyama’s work include Reproductive System and Pregnancy (26 papers), Pelvic Floor Disorders (23 papers) and Pregnancy and preeclampsia studies (21 papers). Masayasu Koyama is often cited by papers focused on Reproductive System and Pregnancy (26 papers), Pelvic Floor Disorders (23 papers) and Pregnancy and preeclampsia studies (21 papers). Masayasu Koyama collaborates with scholars based in Japan, United States and Germany. Masayasu Koyama's co-authors include Fumitaka Saji, Chihiro Azuma, Noboru Matsuzaki, Koichiro Shimoya, Yuji Murata, Kazuhide Ogita, Hitomi Nakamura, Shoji Kamiura, Y. Samejima and Tadashi Kimura and has published in prestigious journals such as Scientific Reports, Biochemical and Biophysical Research Communications and FEBS Letters.

In The Last Decade

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

Fields of papers citing papers by Masayasu Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Masayasu Koyama

Since Specialization
Citations

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