Yuji Kojima

16 papers and 248 indexed citations
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About

Yuji Kojima is a scholar working on Hepatology, Epidemiology and Oncology. According to data from OpenAlex, Yuji Kojima has authored 16 papers receiving a total of 248 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Hepatology, 9 papers in Epidemiology and 2 papers in Oncology. Recurrent topics in Yuji Kojima’s work include Liver Disease Diagnosis and Treatment (9 papers), Hepatitis B Virus Studies (6 papers) and Hepatitis C virus research (6 papers). Yuji Kojima is often cited by papers focused on Liver Disease Diagnosis and Treatment (9 papers), Hepatitis B Virus Studies (6 papers) and Hepatitis C virus research (6 papers). Yuji Kojima collaborates with scholars based in Japan, United States and Greece. Yuji Kojima's co-authors include Yoshinao Kobayashi, Yukihiko Adachi, Masahiko Kaito, Motoh Iwasa, Shozo Watanabe, Masayoshi Konishi, Jiro Ikoma, Ichiro Imoto, Naoki Nakagawa and Yasuhiro Sumida and has published in prestigious journals such as Journal of Clinical Oncology, Clinical Infectious Diseases and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Yuji Kojima

This figure shows the co-authorship network connecting the top 25 collaborators of Yuji Kojima. A scholar is included among the top collaborators of Yuji Kojima 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 Yuji Kojima. Yuji Kojima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Yuji Kojima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Yuji Kojima

Since Specialization
Citations

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