Emi Hirayama

About

Emi Hirayama is a scholar working on Obstetrics and Gynecology, Public Health, Environmental and Occupational Health and Epidemiology. According to data from OpenAlex, Emi Hirayama has authored 13 papers receiving a total of 291 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Obstetrics and Gynecology, 5 papers in Public Health, Environmental and Occupational Health and 4 papers in Epidemiology. Recurrent topics in Emi Hirayama’s work include Pregnancy-related medical research (4 papers), Preterm Birth and Chorioamnionitis (3 papers) and Maternal and fetal healthcare (2 papers). Emi Hirayama is often cited by papers focused on Pregnancy-related medical research (4 papers), Preterm Birth and Chorioamnionitis (3 papers) and Maternal and fetal healthcare (2 papers). Emi Hirayama collaborates with scholars based in Japan, United States and Switzerland. Emi Hirayama's co-authors include Kazuhiko Okuyama, Hitoshi Hareyama, Hideto Yamada, Kumiko Goto, H. Negishi, Seiichiro Fujimoto, Tatsuro Kishida, Mamoru Oikawa, Akiko Uchida and M Mikuni and has published in prestigious journals such as Journal of the Neurological Sciences, Annals of Surgical Oncology and BMJ Open.

In The Last Decade

Co-authorship network of co-authors of Emi Hirayama i

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Fields of papers citing papers by Emi Hirayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Emi Hirayama

Since Specialization

Citations

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