Keiji Haseyama

7 papers and 250 indexed citations i.

About

Keiji Haseyama is a scholar working on Infectious Diseases, Pediatrics, Perinatology and Child Health and Dermatology. According to data from OpenAlex, Keiji Haseyama has authored 7 papers receiving a total of 250 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Infectious Diseases, 4 papers in Pediatrics, Perinatology and Child Health and 2 papers in Dermatology. Recurrent topics in Keiji Haseyama’s work include Parvovirus B19 Infection Studies (6 papers), Prenatal Screening and Diagnostics (4 papers) and Dermatological and COVID-19 studies (2 papers). Keiji Haseyama is often cited by papers focused on Parvovirus B19 Infection Studies (6 papers), Prenatal Screening and Diagnostics (4 papers) and Dermatological and COVID-19 studies (2 papers). Keiji Haseyama collaborates with scholars based in Japan. Keiji Haseyama's co-authors include Yuko Yoto, Tooru Kudoh, Nobuhiro Suzuki, S. Chiba, Shunzo Chiba, Tsuneo Takahashi, Takanori Oda, Nobuhiro Suzuki, Nobuo Mizue and Hiroyuki Tsutsumi and has published in prestigious journals such as The Lancet, Journal of Virology and British Journal of Haematology.

In The Last Decade

Co-authorship network of co-authors of Keiji Haseyama i

Fields of papers citing papers by Keiji Haseyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Keiji Haseyama

Since Specialization
Citations

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