Keizo Fujii

555 total citations
21 papers, 445 citations indexed

About

Keizo Fujii is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Gastroenterology. According to data from OpenAlex, Keizo Fujii has authored 21 papers receiving a total of 445 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Pulmonary and Respiratory Medicine, 9 papers in Surgery and 5 papers in Gastroenterology. Recurrent topics in Keizo Fujii's work include Gastric Cancer Management and Outcomes (15 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (5 papers). Keizo Fujii is often cited by papers focused on Gastric Cancer Management and Outcomes (15 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (5 papers). Keizo Fujii collaborates with scholars based in Japan and United States. Keizo Fujii's co-authors include Hiroshi Isozaki, Kunio Okajima, Nobuyuki Izumi, Eiji Nomura, Hideaki Mabuchi, Kanji Nishiguchi, Nobuhiko Tanigawa, Masao Toyoda, Masahiro Ohtani and N Tanigawa and has published in prestigious journals such as Cancer, British journal of surgery and Journal of Surgical Oncology.

In The Last Decade

Keizo Fujii

20 papers receiving 429 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keizo Fujii Japan 11 359 215 182 63 42 21 445
Nobuyuki Izumi Japan 10 267 0.7× 140 0.7× 162 0.9× 23 0.4× 28 0.7× 24 338
Guido Missale Italy 10 193 0.5× 325 1.5× 111 0.6× 87 1.4× 32 0.8× 23 424
T Takekoshi Japan 6 407 1.1× 287 1.3× 202 1.1× 117 1.9× 23 0.5× 17 527
Jung Ho Shim South Korea 15 492 1.4× 382 1.8× 207 1.1× 111 1.8× 13 0.3× 23 609
J D Davies United Kingdom 6 242 0.7× 183 0.9× 99 0.5× 51 0.8× 16 0.4× 9 340
Yosuke Kito Japan 10 218 0.6× 134 0.6× 70 0.4× 119 1.9× 31 0.7× 40 325
Yin‐Yi Chu Taiwan 12 141 0.4× 209 1.0× 68 0.4× 49 0.8× 38 0.9× 24 300
E Ojembarrena Spain 10 118 0.3× 200 0.9× 149 0.8× 71 1.1× 8 0.2× 17 315
K. G. Janunger Sweden 10 215 0.6× 235 1.1× 107 0.6× 99 1.6× 15 0.4× 11 392
Yasuhiro Shioaki Japan 10 199 0.6× 174 0.8× 71 0.4× 50 0.8× 12 0.3× 48 284

Countries citing papers authored by Keizo Fujii

Since Specialization
Citations

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

Fields of papers citing papers by Keizo Fujii

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keizo Fujii

This figure shows the co-authorship network connecting the top 25 collaborators of Keizo Fujii. A scholar is included among the top collaborators of Keizo Fujii 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 Keizo Fujii. Keizo Fujii 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.
2.
Nomura, Eiji, Hiroshi Isozaki, Keizo Fujii, et al.. (2004). Postoperative evaluation of function-preserving gastrectomy for early gastric cancer.. PubMed. 50(54). 2246–50. 28 indexed citations
3.
Isozaki, Hiroshi, Noriaki Tanaka, Keizo Fujii, Nobuhiko Tanigawa, & Kunio Okajima. (2001). Improvement of the prognosis of gastric cancer with extensive serosal invasion using left upper abdominal evisceration.. PubMed. 48(40). 1179–82. 3 indexed citations
4.
Fujii, Keizo, Hiroshi Isozaki, Kunio Okajima, et al.. (1999). Clinical evaluation of lymph node metastasis in gastric cancer defined by the fifth edition of the TNM classification in comparison with the Japanese system. British journal of surgery. 86(5). 685–689. 62 indexed citations
5.
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Fujii, Keizo, Kunio Okajima, Hiroshi Isozaki, et al.. (1998). A Clinicopathological Study on the Indications of Limited Surgery for Submucosal Gastric Cancer.. The Japanese Journal of Gastroenterological Surgery. 31(10). 2055–2062. 18 indexed citations
9.
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Isozaki, Hiroshi, et al.. (1997). Distant lymph node metastasis of early gastric cancer. Surgery Today. 27(7). 600–605. 12 indexed citations
11.
Isozaki, Hiroshi, et al.. (1997). Surgery for gastric cancer in patients with cirrhosis. Surgery Today. 27(1). 17–21. 30 indexed citations
12.
Hara, Hitoshi, Nobuhiko Tanigawa, Hiroshi Isozaki, et al.. (1997). Clinical problems in the surgical treatment of pancreaticobiliary maljunction. Journal of Hepato-Biliary-Pancreatic Surgery. 4(4). 453–459. 1 indexed citations
13.
Isozaki, Hiroshi, et al.. (1997). Risk factors of esophagojejunal anastomotic leakage after total gastrectomy for gastric cancer.. PubMed. 44(17). 1509–12. 31 indexed citations
14.
Isozaki, Hiroshi, et al.. (1996). Postoperative evaluation of pylorus-preserving gastrectomy for early gastric cancer. British journal of surgery. 83(2). 266–269. 101 indexed citations
15.
Okajima, Kunio, et al.. (1996). [Measurement of the plasma transforming growth factor-beta 1 (TGF-beta 1) level in patients of gastric carcinoma--compared with the serum IAP level and the lymphocyte subsets (CD3, CD4, CD8)].. PubMed. 93(5). 303–11. 5 indexed citations
16.
Isozaki, Hiroshi, et al.. (1996). Significance of proliferating cell nuclear antigen (PCNA) expression in gastric cancer in relation to lymph node metastasis. Journal of Surgical Oncology. 61(2). 106–110. 9 indexed citations
17.
Isozaki, Hiroshi, et al.. (1996). Multiple early gastric carcinomas: Clinicopathologic features and histogenesis. Cancer. 78(10). 2078–2086. 20 indexed citations
18.
Isozaki, Hiroshi, et al.. (1996). Postoperative evaluation of pylorus-preserving gastrectomy for early gastric cancer. British journal of surgery. 83(2). 266–269. 47 indexed citations
19.
Okajima, Kunio, Hiroshi Isozaki, Eiji Nakata, et al.. (1995). A CASE OF MALIGNANT LYMPHOMA IN THE RESIDUAL STOMACH. The journal of the Japanese Practical Surgeon Society. 56(9). 1838–1844. 1 indexed citations
20.
Isozaki, Hiroshi, et al.. (1995). Surgery for Gastric Cancer Patients Aged 75 and Over. Digestive Surgery. 12(4). 238–244. 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.

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