Koichiro Ejima

156 total papers · 1.1k total citations
68 papers, 596 citations indexed

About

Koichiro Ejima is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery. According to data from OpenAlex, Koichiro Ejima has authored 68 papers receiving a total of 596 indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Cardiology and Cardiovascular Medicine, 6 papers in Epidemiology and 6 papers in Surgery. Recurrent topics in Koichiro Ejima’s work include Cardiac Arrhythmias and Treatments (45 papers), Cardiac pacing and defibrillation studies (32 papers) and Atrial Fibrillation Management and Outcomes (31 papers). Koichiro Ejima is often cited by papers focused on Cardiac Arrhythmias and Treatments (45 papers), Cardiac pacing and defibrillation studies (32 papers) and Atrial Fibrillation Management and Outcomes (31 papers). Koichiro Ejima collaborates with scholars based in Japan. Koichiro Ejima's co-authors include Morio Shoda, Nobuhisa Hagiwara, Tetsuyuki Manaka, Daigo Yagishita, Kotaro Arai, Kyomi Ashihara, Satoshi Higuchi, Keiko Fukushima, Noritoshi Fukushima and Yuji Iwanami and has published in prestigious journals such as Circulation, The American Journal of Cardiology and Progress of Theoretical Physics.

Co-authorship network of co-authors of Koichiro Ejima

This figure shows the co-authorship network connecting the top 25 collaborators of Koichiro Ejima. A scholar is included among the top collaborators of Koichiro Ejima based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koichiro Ejima. Koichiro Ejima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Koichiro Ejima

63 papers receiving 567 citations

Fields of papers citing papers by Koichiro Ejima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koichiro Ejima

Since Specialization
Citations

This map shows the geographic impact of Koichiro 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 Koichiro Ejima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichiro 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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2026