Kiyoaki Niimi

35 papers and 347 indexed citations i.

About

Kiyoaki Niimi is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Kiyoaki Niimi has authored 35 papers receiving a total of 347 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Surgery, 19 papers in Pulmonary and Respiratory Medicine and 14 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Kiyoaki Niimi’s work include Aortic aneurysm repair treatments (14 papers), Cardiac, Anesthesia and Surgical Outcomes (10 papers) and Diagnosis and Treatment of Venous Diseases (8 papers). Kiyoaki Niimi is often cited by papers focused on Aortic aneurysm repair treatments (14 papers), Cardiac, Anesthesia and Surgical Outcomes (10 papers) and Diagnosis and Treatment of Venous Diseases (8 papers). Kiyoaki Niimi collaborates with scholars based in Japan and Greece. Kiyoaki Niimi's co-authors include Hiroshi Banno, Masayuki Sugimoto, Kimihiro Komori, Yeun‐Chung Chang, Y Ogawa, Naofumi Nagasue, Akio Kodama, H Yukaya, Masafumi Hirai and Akio Kôyama and has published in prestigious journals such as Journal of Vascular Surgery, European Journal of Vascular and Endovascular Surgery and Circulation Journal.

In The Last Decade

Co-authorship network of co-authors of Kiyoaki Niimi i

Fields of papers citing papers by Kiyoaki Niimi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kiyoaki Niimi

Since Specialization
Citations

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