Tadao Niijima

134 papers and 1.3k indexed citations i.

About

Tadao Niijima is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Molecular Biology. According to data from OpenAlex, Tadao Niijima has authored 134 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Surgery, 41 papers in Pulmonary and Respiratory Medicine and 28 papers in Molecular Biology. Recurrent topics in Tadao Niijima’s work include Bladder and Urothelial Cancer Treatments (40 papers), Urinary and Genital Oncology Studies (17 papers) and Prostate Cancer Treatment and Research (17 papers). Tadao Niijima is often cited by papers focused on Bladder and Urothelial Cancer Treatments (40 papers), Urinary and Genital Oncology Studies (17 papers) and Prostate Cancer Treatment and Research (17 papers). Tadao Niijima collaborates with scholars based in Japan, United States and Greece. Tadao Niijima's co-authors include Hideyuki Akaza, Kenkichi Koiso, Takashi Umeda, Kazuki Kawabe, Tadao Kakizoe, Takashi Sügimura, Shohei Nakamura, Hideki Komatsu, Kazuo Honda and Takashi Kawachi and has published in prestigious journals such as Cancer, Kidney International and The Journal of Urology.

In The Last Decade

Co-authorship network of co-authors of Tadao Niijima i

Fields of papers citing papers by Tadao Niijima

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Tadao Niijima

Since Specialization
Citations

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