This map shows the geographic impact of Naoki Nagata'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 Naoki Nagata with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Naoki Nagata more than expected).
This network shows the impact of papers produced by Naoki Nagata. 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 Naoki Nagata. The network helps show where Naoki Nagata may publish in the future.
Co-authorship network of co-authors of Naoki Nagata
This figure shows the co-authorship network connecting the top 25 collaborators of Naoki Nagata.
A scholar is included among the top collaborators of Naoki Nagata 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 Naoki Nagata. Naoki Nagata is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Hirata, Keiji, Naoki Nagata, Takeshi Kato, et al.. (2014). Prospective phase II trial of second-line FOLFIRI in patients with advanced colorectal cancer including analysis of UGT1A1 polymorphisms: FLIGHT 2 study.. PubMed. 34(1). 195–201.9 indexed citations
Kato, Takeshi, Naoki Nagata, Makoto Fujii, et al.. (2011). Multi-center phase II study of FLOX for advanced colorectal cancer patients in Japan: SWIFT 3 study.. PubMed. 31(12). 4657–64.2 indexed citations
7.
Hirata, Keiji, et al.. (2009). . Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons). 34(1). 91–95.3 indexed citations
Yoshioka, Shinichi, et al.. (2008). Elements and Physical Properties of Green Tea Decoction using Hakusan-Meisui Mineral Water. Yonago acta medica. 51(3). 61–67.2 indexed citations
Nakayama, Yoshifumi, Kentaro Matsumoto, Yuzuru Inoue, et al.. (2007). Significance of lymphangiogenesis as assessed by immunohistochemistry for podoplanin in patients with esophageal carcinoma.. PubMed. 27(1B). 619–25.16 indexed citations
13.
Nakamura, Kenji, et al.. (2007). . Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons). 32(1). 55–59.1 indexed citations
14.
Matsumoto, Kentaro, Keiji Hirata, Shuichi Kanemitsu, et al.. (2006). A Case of Mesenteric Paraganglioma. The Japanese Journal of Gastroenterological Surgery. 39(1). 84–89.5 indexed citations
15.
Inoue, Yuzuru, Yoshifumi Nakayama, Noritaka Minagawa, et al.. (2005). Relationship between interleukin-12-expressing cells and antigen-presenting cells in patients with colorectal cancer.. PubMed. 25(5). 3541–6.15 indexed citations
16.
Nakayama, Yoshifumi, Yuzuru Inoue, Nobuo Nagashima, et al.. (2005). Expression levels of thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) in patients with gastrointestinal cancer.. PubMed. 25(6A). 3755–61.19 indexed citations
Nakayama, Yoshifumi, Koji Kadowaki, Naoki Nagata, Yoshiaki Hirano, & Hideaki Itoh. (2000). Depressed Type Early Duodenal Cancer. A Case Report.. The Japanese Journal of Gastroenterological Surgery. 33(4). 477–481.1 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.