Masazumi Okajima

116 papers and 1.4k indexed citations i.

About

Masazumi Okajima is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Masazumi Okajima has authored 116 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 61 papers in Surgery, 49 papers in Oncology and 35 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Masazumi Okajima’s work include Colorectal Cancer Surgical Treatments (26 papers), Gastric Cancer Management and Outcomes (18 papers) and Colorectal and Anal Carcinomas (17 papers). Masazumi Okajima is often cited by papers focused on Colorectal Cancer Surgical Treatments (26 papers), Gastric Cancer Management and Outcomes (18 papers) and Colorectal and Anal Carcinomas (17 papers). Masazumi Okajima collaborates with scholars based in Japan, United States and United Kingdom. Masazumi Okajima's co-authors include Toshimasa Asahara, Satoshi Ikeda, Takao Hinoi, Hideki Ohdan, Yosuke Shimizu, Maiko Fujimori, Hiroyuki Egi, Manabu Shimomura, Yasuyo Ishizaki and Masanori Yoshimitsu and has published in prestigious journals such as Nucleic Acids Research, Journal of Clinical Oncology and Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Masazumi Okajima i

Fields of papers citing papers by Masazumi Okajima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Masazumi Okajima

Since Specialization
Citations

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

Explore authors with similar magnitude of impact

Rankless by CCL
2025