Hiroji Naka

560 total citations
10 papers, 421 citations indexed

About

Hiroji Naka is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Hiroji Naka has authored 10 papers receiving a total of 421 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Surgery, 3 papers in Pulmonary and Respiratory Medicine and 3 papers in Gastroenterology. Recurrent topics in Hiroji Naka's work include Helicobacter pylori-related gastroenterology studies (4 papers), Eosinophilic Esophagitis (3 papers) and Gastrointestinal disorders and treatments (3 papers). Hiroji Naka is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (4 papers), Eosinophilic Esophagitis (3 papers) and Gastrointestinal disorders and treatments (3 papers). Hiroji Naka collaborates with scholars based in Japan. Hiroji Naka's co-authors include Kazuhiko Masuda, Kimio Matsuura, Masanori Hirao, Kôichi Noda, Noriyuki Ueda, H. Kawauchi, Shigeki Yamaguchi, K. Noda, M Namiki and Akira Yachi and has published in prestigious journals such as Journal of Clinical Microbiology, Gastrointestinal Endoscopy and European Journal of Gastroenterology & Hepatology.

In The Last Decade

Hiroji Naka

9 papers receiving 403 citations

Peers

Hiroji Naka
J. -M. Canard France
Yosuke Kataoka Japan
Jae Jin Hwang South Korea
Kotaro Mannen Japan
Mikinori Kataoka Japan
S. Pallotta Italy
H.J.A. Hazenberg Netherlands
Thierry Tuszynski France
Nilda Santiago Puerto Rico
Lili Ma China
J. -M. Canard France
Hiroji Naka
Citations per year, relative to Hiroji Naka Hiroji Naka (= 1×) peers J. -M. Canard

Countries citing papers authored by Hiroji Naka

Since Specialization
Citations

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

Fields of papers citing papers by Hiroji Naka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroji Naka

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

All Works

10 of 10 papers shown
1.
Sugiyama, Toshiro, Hiroji Naka, Akira Yachi, & Masahiro Asaka. (2000). Direct Evidence by DNA Fingerprinting that Endoscopic Cross-Infection of Helicobacter pylori Is a Cause of Postendoscopic Acute Gastritis. Journal of Clinical Microbiology. 38(6). 2381–2382. 20 indexed citations
2.
Sugiyama, Toshiro, Hiroji Naka, Akira Yachi, & Masahiro Asaka. (2000). Direct Evidence by DNA Fingerprinting that Endoscopic Cross-Infection of Helicobacter pylori Is a Cause of Postendoscopic Acute Gastritis. Journal of Clinical Microbiology. 38(6). 2381–2382. 4 indexed citations
3.
Naka, Hiroji, Toshiro Sugiyama, Mototsugu Kato, & Masahiro Asaka. (1999). ACUTE GASTRIC IVIUCUSAL LESIGNS CAUSED BY UPPER GASTROINTFESTINAL, ENDOSCOPY-A REVIEW OF THE PATHOPHYSIOFLOGY AND UNSOLVED ISSUES. Acta gastro-enterologica belgica. 41(9). 2035–2043. 1 indexed citations
4.
Naka, Hiroji, Teruhito Awakawa, Shozo Furuyama, et al.. (1992). Is Helicobacter pylori infection responsible for postendoscopic acute gastric mucosal lesions. European Journal of Gastroenterology & Hepatology. 4. 93–96. 17 indexed citations
5.
Hirao, Masanori, Kazuhiko Masuda, Hiroji Naka, et al.. (1988). Endoscopic resection of early gastric cancer and other tumors with local injection of hypertonic saline-epinephrine. Gastrointestinal Endoscopy. 34(3). 264–269. 294 indexed citations
6.
Hirano, Makito, et al.. (1987). [CA125 in patients with pleural effusion--in comparison with ascites patients].. PubMed. 35(8). 905–9.
7.
Hirao, Masanori, Kazuhiko Masuda, Shigeki Yamaguchi, et al.. (1985). Endoscopic local injection of hypertonic saline-epinephrine solution to arrest hemorrhage from the upper gastrointestinal tract. Gastrointestinal Endoscopy. 31(5). 313–317. 69 indexed citations
8.
Hirao, Masanori, Takashi Kobayashi, Yoshihiro Ikeda, et al.. (1983). ENDOSCOPIC RESECTION OF EARLY GASTRIC CARCINOMAS AND OTHER GASTRIC LESIONS WITH MALIGNANT POTENTIAL. Acta gastro-enterologica belgica. 25(12). 1942–1953. 7 indexed citations
9.
Hirao, Masanori, Kazuhiko Masuda, Kôichi Noda, et al.. (1982). ENDOSCOPIC LOCAL INJECTION OF HYPERTONIC SALINE EPINEPHRINE SOLUTION TO ARREST HEMORRHAGE FROM THE UPPER DIGESTIVE TRACT. Acta gastro-enterologica belgica. 24(2). 234–243. 8 indexed citations
10.

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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2026