Keijiro Ueda

435 total citations
29 papers, 160 citations indexed

About

Keijiro Ueda is a scholar working on Oncology, Epidemiology and Surgery. According to data from OpenAlex, Keijiro Ueda has authored 29 papers receiving a total of 160 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Oncology, 16 papers in Epidemiology and 13 papers in Surgery. Recurrent topics in Keijiro Ueda's work include Neuroendocrine Tumor Research Advances (15 papers), Pancreatic and Hepatic Oncology Research (11 papers) and Lung Cancer Research Studies (7 papers). Keijiro Ueda is often cited by papers focused on Neuroendocrine Tumor Research Advances (15 papers), Pancreatic and Hepatic Oncology Research (11 papers) and Lung Cancer Research Studies (7 papers). Keijiro Ueda collaborates with scholars based in Japan, United States and Germany. Keijiro Ueda's co-authors include Tetsuhide Ito, Lingaku Lee, Ken Kawabe, Yoshihiro Ogawa, Hisato Igarashi, Masayuki Hijioka, Takao Ohtsuka, Kazuhiko Nakamura, Yuichi Tachibana and Nao Fujimori and has published in prestigious journals such as BioMed Research International, Endoscopy and Journal of Gastroenterology.

In The Last Decade

Keijiro Ueda

21 papers receiving 151 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Keijiro Ueda Japan 9 104 82 65 31 25 29 160
Fabio Gelsomino Italy 7 67 0.6× 38 0.5× 23 0.4× 25 0.8× 10 0.4× 19 99
Guole Lin China 7 90 0.9× 14 0.2× 68 1.0× 8 0.3× 29 1.2× 27 142
Annunziata Di Domenico Switzerland 6 208 2.0× 215 2.6× 25 0.4× 123 4.0× 13 0.5× 10 273
Д. Л. Ротин Russia 6 25 0.2× 38 0.5× 32 0.5× 12 0.4× 29 1.2× 45 109
V.D. Corleto Italy 9 202 1.9× 292 3.6× 67 1.0× 172 5.5× 7 0.3× 12 333
Ioana Maria Lambrescu Romania 7 46 0.4× 51 0.6× 10 0.2× 35 1.1× 5 0.2× 12 111
Jay Zeck United States 7 64 0.6× 19 0.2× 25 0.4× 4 0.1× 25 1.0× 10 101
Sandra Vossen Germany 5 37 0.4× 21 0.3× 47 0.7× 8 0.3× 15 0.6× 10 97
Jourdain Hayward United States 3 69 0.7× 61 0.7× 8 0.1× 38 1.2× 13 0.5× 3 89
S. Nasoni Italy 4 326 3.1× 356 4.3× 20 0.3× 227 7.3× 10 0.4× 9 381

Countries citing papers authored by Keijiro Ueda

Since Specialization
Citations

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

Fields of papers citing papers by Keijiro Ueda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keijiro Ueda

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

All Works

20 of 20 papers shown
1.
Murakami, Masatoshi, Nao Fujimori, Keijiro Ueda, et al.. (2025). Clinical Implications of Ki‐67 Index, Grade and Hormonal Changes in Pancreatic Neuroendocrine Tumors: Insights Into Tumor Heterogeneity Based on Primary and Secondary Lesions. Journal of Hepato-Biliary-Pancreatic Sciences. 33(2). 141–150.
2.
Hijioka, Susumu, Yoshikuni Nagashio, Kazuhiro FUJISAKI, et al.. (2025). Efficacy of the Stent‐in‐Stent Technique as a Rescue Method for Removing Embedded Metallic Biliary Stents. DEN Open. 6(1). e70246–e70246.
3.
Fujimori, Nao, Ayumu Takeno, Masatoshi Murakami, et al.. (2024). Patient-derived organoids of pancreatic ductal adenocarcinoma for subtype determination and clinical outcome prediction. Journal of Gastroenterology. 59(7). 629–640. 11 indexed citations
4.
Murakami, Masatoshi, Nao Fujimori, Tetsuhide Ito, et al.. (2024). Efficacy and safety of streptozocin-based chemotherapy for gastroenteropancreatic neuroendocrine tumors in Japanese clinical practice. Japanese Journal of Clinical Oncology. 54(6). 647–657. 1 indexed citations
5.
6.
Murakami, Masatoshi, Nao Fujimori, Takeo Yamamoto, et al.. (2024). Two cases of pancreatic neuroendocrine tumors with ectopic ACTH syndrome during their disease course. Clinical Journal of Gastroenterology. 17(2). 363–370. 1 indexed citations
7.
Minoda, Yosuke, et al.. (2023). Rare complications related to lumen-apposing metal stent placement, successfully treated by endoscopic hand-suturing device.. Endoscopy. 55(S 01). E692–E693. 3 indexed citations
8.
Mizuno, Yuji, Tetsuhide Ito, Keijiro Ueda, et al.. (2022). A case of erythema multiforme-like rash induced by everolimus in a patient with a pancreatic neuroendocrine tumor. Clinical Journal of Gastroenterology. 15(6). 1193–1197.
9.
Fujimori, Nao, Keijiro Ueda, Kaoru Ômori, et al.. (2022). Incidence and appropriate management of drug‐induced interstitial lung disease in Japanese patients with unresectable pancreatic cancer: A multicenter retrospective study. Asia-Pacific Journal of Clinical Oncology. 19(4). 533–541. 3 indexed citations
10.
11.
Ueda, Keijiro, Ken Kawabe, Lingaku Lee, et al.. (2017). Diagnostic Performance of 48-Hour Fasting Test and Insulin Surrogates in Patients With Suspected Insulinoma. Pancreas. 46(4). 476–481. 6 indexed citations
12.
Ito, Tetsuhide, Masayuki Hijioka, Lingaku Lee, et al.. (2017). Utility of chromogranin B compared with chromogranin A as a biomarker in Japanese patients with pancreatic neuroendocrine tumors. Japanese Journal of Clinical Oncology. 47(6). 520–528. 14 indexed citations
13.
14.
Ueda, Keijiro, Tetsuhide Ito, Ken Kawabe, et al.. (2017). Should the Selective Arterial Secretagogue Injection Test for Insulinoma Localization Be Evaluated at 60 or 120 Seconds?. Internal Medicine. 56(22). 2985–2991. 5 indexed citations
15.
Ueda, Keijiro, Toshiyuki Suzuki, Lingaku Lee, et al.. (2016). Streptozocin monotherapy (Daily schedule) for Japanese patients with advanced pancreatic neuroendocrine tumors: A single-center experience. Pancreatology. 16(4). S112–S112.
16.
Lee, Lingaku, Tetsuhide Ito, Hisato Igarashi, et al.. (2016). Impact of everolimus on Japanese patients with advanced pancreatic neuroendocrine neoplasms. Journal of Hepato-Biliary-Pancreatic Sciences. 24(2). 95–102. 10 indexed citations
17.
Ito, Tetsuhide, Hisato Igarashi, Masayuki Hijioka, et al.. (2015). Recent advances in the treatment of relapsing autoimmune pancreatitis: Efficacy of immunomodulators and rituximab. Suizo. 30(1). 85–93.
18.
Lee, Lingaku, Hisato Igarashi, Masayuki Hijioka, et al.. (2014). Formation mechanism of pancreatic pseudocyst associated with autoimmune pancreatitis and efficacy of corticosteroid therapy: Considerations from 12 cases. Suizo. 29(4). 711–720. 1 indexed citations
19.
Fukushige, Junichiro, et al.. (1996). Long-Term Outcome of Coronary Abnormalities in Patients After Kawasaki Disease. Pediatric Cardiology. 17(2). 71–76. 2 indexed citations
20.
Hiramatsu, Masahiko, et al.. (1988). Streptozotocin-Induced Diabetes Increases Sialidase Activity in the Rat Liver. Hormone and Metabolic Research. 20(11). 718–719. 3 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Fabio Gelsomino Breakdown of academic impact, for papers by Guole Lin Breakdown of academic impact, for papers by Annunziata Di Domenico Breakdown of academic impact, for papers by Д. Л. Ротин Breakdown of academic impact, for papers by V.D. Corleto Breakdown of academic impact, for papers by Ioana Maria Lambrescu Breakdown of academic impact, for papers by Jay Zeck Breakdown of academic impact, for papers by Sandra Vossen Breakdown of academic impact, for papers by Jourdain Hayward Breakdown of academic impact, for papers by S. Nasoni
Rankless by CCL
2026