This map shows the geographic impact of Takao Sonoda'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 Takao Sonoda with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Takao Sonoda more than expected).
This network shows the impact of papers produced by Takao Sonoda. 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 Takao Sonoda. The network helps show where Takao Sonoda may publish in the future.
Co-authorship network of co-authors of Takao Sonoda
This figure shows the co-authorship network connecting the top 25 collaborators of Takao Sonoda.
A scholar is included among the top collaborators of Takao Sonoda 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 Takao Sonoda. Takao Sonoda is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Takahara, S., A Moutabarrik, H Kameoka, et al.. (1993). Use of 15-deoxyspergualin in treatment of acute rejection in kidney transplant patients.. PubMed. 25(3). 2254–8.1 indexed citations
Okuyama, Ayako, K. Matsumoto, Masato Utsunomiya, et al.. (1984). Improvement of spermatogenesis by hCG and hMG treatment in pubertal boys with history of orchiopexy at early childhood.. PubMed. 12 Suppl. 29–33.3 indexed citations
Okuyama, Ayako, et al.. (1979). Development of the calyceal system in the human fetus.. PubMed. 16(5). 388–94.4 indexed citations
16.
Matsuda, Minoru, Etsuji Nakano, Toshihiko Kotake, et al.. (1979). Characterization of an established cell line from human renal carcinoma.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 39(11). 4694–9.26 indexed citations
17.
Higashino, Kazuya, Toshikazu Hada, Shinichiro Watanabe, et al.. (1979). Alteration of hexosaminidase isozymes in human renal carcinoma.. PubMed. 39(5). 1829–34.21 indexed citations
18.
Itatani, Hiroaki, Takuo Koide, Äkïhïko Okuyama, Masafumi Takeuchi, & Takao Sonoda. (1976). MALDEVELOPED KIDNEY. The Japanese Journal of Urology. 67(3). 178–187.1 indexed citations
Mizutani, S., et al.. (1962). [Macroscopic parathyroid cysts with primary hyperparathyroidism: report of a case].. PubMed. 8. 299–306.9 indexed citations
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.