Keisuke Ejima

75 papers and 963 indexed citations i.

About

Keisuke Ejima is a scholar working on Epidemiology, Modeling and Simulation and Infectious Diseases. According to data from OpenAlex, Keisuke Ejima has authored 75 papers receiving a total of 963 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Epidemiology, 25 papers in Modeling and Simulation and 22 papers in Infectious Diseases. Recurrent topics in Keisuke Ejima’s work include COVID-19 epidemiological studies (25 papers), SARS-CoV-2 and COVID-19 Research (12 papers) and Traumatic Brain Injury Research (11 papers). Keisuke Ejima is often cited by papers focused on COVID-19 epidemiological studies (25 papers), SARS-CoV-2 and COVID-19 Research (12 papers) and Traumatic Brain Injury Research (11 papers). Keisuke Ejima collaborates with scholars based in United States, Japan and Singapore. Keisuke Ejima's co-authors include Hiroshi Nishiura, Kazuyuki Aihara, Shingo Iwami, Kenji Mizumoto, David B. Allison, Keisuke Kawata, Kwang Su Kim, Shoya Iwanami, Yasuhisa Fujita and Megan E. Huibregtse and has published in prestigious journals such as Nature Communications, PLoS ONE and American Journal of Clinical Nutrition.

In The Last Decade

Co-authorship network of co-authors of Keisuke Ejima i

Fields of papers citing papers by Keisuke Ejima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Keisuke Ejima

Since Specialization
Citations

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