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Researcher · Ishikawa Prefectural Central Hospital · Japan

Hisashi Doyama

Hisashi Doyama publishes mostly in Surgery, Pulmonary and Respiratory Medicine and Gastroenterology, on topics such as Gastric Cancer Management and Outcomes, Esophageal Cancer Research and Treatment and Helicobacter pylori-related gastroenterology studies.

ORCID 0000-0002-7457-0167 OpenAlex
World rank
#545,208
of 7,710,434 ranked researchers
Rank in Japan
#5,747
of 383,136
Works
216
Citations
4.5k
Citations per work
20.8
h-index
34
i10-index 75Top 4.7% in Surgery
Hisashi Doyama

What does Hisashi Doyama research?

Hisashi Doyama's work is mostly in Medicine (86%).

Health Sciences: 187 works · 86.5% of their workMedicine: 187 works · 86.5% of their workSurgery: 73 works · 33.8% of their workPulmonary and Respiratory Medicine: 70 works · 32.5% of their workGastroenterology: 17 works · 8.0% of their workOncology: 16 works · 7.2% of their workOtorhinolaryngology: 6 works · 2.6% of their workPathology and Forensic Medicine: 5 works · 2.4% of their workEverything else: 29 works · 13.5% of their workTHEIR WORKHisashi Doyama216works
Health Sciences86%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Medicine18786.5%
  2. Everything else2913.5%
  1. 1Surgery34% of their works
  2. 2Pulmonary and Respiratory Medicine32% of their works
  3. 3Gastroenterology8% of their works
  4. 4Oncology7% of their works
  5. 5Otorhinolaryngology3% of their works
  6. 6Pathology and Forensic Medicine2% of their works

Research topics

Which keywords describe Hisashi Doyama's research?

The keywords of their largest research topics: Endoscopic Resection, Gastric Cancer, Chemotherapy, Lymph Node Dissection, Molecular Characterization, Esophageal Carcinoma, Preoperative Chemoradiotherapy and Prevention.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most. The words come from the keyword list OpenAlex gives each topic, not from the text of the papers, so a word can appear that none of the papers uses.

All 20 words, with their numbers
  1. Endoscopic Resection2182 topics
  2. Gastric Cancer1942 topics
  3. Chemotherapy1512 topics
  4. Lymph Node Dissection1371 topic
  5. Molecular Characterization1371 topic
  6. Esophageal Carcinoma811 topic
  7. Preoperative Chemoradiotherapy811 topic
  8. Prevention732 topics
  9. Helicobacter pylori571 topic
  10. Inflammation571 topic
  11. Lung Tumors381 topic
  12. Metastatic Carcinomas381 topic
  13. Imatinib Mesylate351 topic
  14. Sunitinib351 topic
  15. Endoscopic Stenting181 topic
  16. Esophageal Perforation181 topic
  17. Colorectal Cancer161 topic
  18. Screening161 topic
  19. Human Papillomavirus141 topic
  20. Oropharyngeal Cancer141 topic

Where does Hisashi Doyama work?

Hisashi Doyama's main affiliation in the publication record is Ishikawa Prefectural Central Hospital, Japan.

How many publications and citations does Hisashi Doyama have?

OpenAlex counts 216 works and 4,486 citations for Hisashi Doyama, an h-index of 34, ranking #545,208 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised citation excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

Discussion

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