Keiko Nojima

19 papers and 381 indexed citations i.

About

Keiko Nojima is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Keiko Nojima has authored 19 papers receiving a total of 381 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Surgery, 8 papers in Pulmonary and Respiratory Medicine and 6 papers in Epidemiology. Recurrent topics in Keiko Nojima’s work include Congenital Heart Disease Studies (5 papers), Kawasaki Disease and Coronary Complications (4 papers) and Cardiac Structural Anomalies and Repair (4 papers). Keiko Nojima is often cited by papers focused on Congenital Heart Disease Studies (5 papers), Kawasaki Disease and Coronary Complications (4 papers) and Cardiac Structural Anomalies and Repair (4 papers). Keiko Nojima collaborates with scholars based in Japan. Keiko Nojima's co-authors include Akihiro Saito, Ken Ueda, Hiroyuki Nakano, Atsuyoshi Takao, Hiromi Kurosawa, Toshio Nakanishi, Mitsuru Nakazawa, Y Imai, Masaharu Sumii and Ken Haruma and has published in prestigious journals such as Circulation, Gastroenterology and The American Journal of Cardiology.

In The Last Decade

Co-authorship network of co-authors of Keiko Nojima i

Fields of papers citing papers by Keiko Nojima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Keiko Nojima

Since Specialization
Citations

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