Science Explorer Interactive view Map
Hospital / health system · Sapporo · Japan

Tonan Hospital

In research, Tonan Hospital stands highest in Medicine (#13,615 of 17,978 worldwide) and Health Sciences (#16,734 of 20,462 worldwide), over all time.

tonan.kkr.or.jpROR OpenAlex
World rank, all time
#37,226
of 42,892
Rank in Japan
#1,671
of 2,112
Research works
344
▲ 16% vs 2013–17
Citations
3.1k
9.1 per fractional work
Top-10% rate
6.4%
record average 16.5%
Open access
56%
world 28%

What is Tonan Hospital known for in research?

The fields where it stands highest, over all time, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorks
MedicineField #13,615 of 17,978 6.8%284
Health SciencesDomain #16,734 of 20,462 6.7%294

Each strip is that field’s whole ranked pool, with the notch where Tonan Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.09× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.63× its world share, 2 worksBiochemistry, Geneti…Immunology and Microbiology: 0.09× its world share, 0 worksImmunology and Micro…Neuroscience: 0.06× its world share, 0 worksNeuroscienceChemistry: 0.18× its world share, 0 worksChemistryComputer Science: 0.20× its world share, 1 worksComputer ScienceEnergy: 0.92× its world share, 0 worksEnergyEngineering: 0.16× its world share, 2 worksEngineeringEnvironmental Science: 0.16× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.09× its world share, 0 worksMaterials SciencePhysics and Astronomy: 0.29× its world share, 0 worksPhysics and AstronomyDentistry: 0.17× its world share, 0 worksDentistryHealth Professions: 0.49× its world share, 1 worksHealth ProfessionsMedicine: 4.34× its world share, 49 worksMedicineNursing: 0.09× its world share, 0 worksNursingDecision Sciences: 0.88× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.26× its world share, 0 worksEconomics, Econometr…Psychology: 0.34× its world share, 1 worksPsychologySocial Sciences: 0.15× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.3×. Every wedge is a field page.

Who are the top researchers at Tonan Hospital?

Ranked on the composite score, William H. Elder, Yoshinori Suzuki and Yasushi Tsuji lead among researchers whose main affiliation is Tonan Hospital.

  1. 1 William H. Elder Japan · #415,635 worldwide 83 citations · 16 works
  2. 2 Yoshinori Suzuki Japan · #751,843 worldwide 173 citations · 106 works
  3. 3 Yasushi Tsuji Japan · #835,001 worldwide 132 citations · 80 works
  4. 4 Hitoshi Kondo Japan · #893,389 worldwide 78 citations · 86 works
  5. 5 Soichiro Uehara Japan · #1,045,044 worldwide 6 citations · 16 works
  6. 6 Yo Kawarada Japan · #1,115,115 worldwide 5 citations · 16 works
  7. 7 Hideyuki Ihara Japan · #1,163,561 worldwide 14 citations · 26 works
  8. 8 Michiaki Hirayama Japan · #1,231,178 worldwide 3 citations · 16 works
  9. 9 Akio Hirayama Japan · #1,257,511 worldwide 6 citations · 16 works
All ranked researchers at Tonan Hospital

Which keywords describe research at Tonan Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Chemotherapy, Neoadjuvant Therapy, Treatment, Immunotherapy, Clinical Practice Guidelines, Tumor Microenvironment, Pancreatic Cancer and Surgical Complications.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Chemotherapy8▲ 19×13 topics
  2. Epidemiology6▲ 2.6×24 topics
  3. Neoadjuvant Therapy6▲ 41×5 topics
  4. Treatment5▲ 7.5×17 topics
  5. Immunotherapy5▲ 11×9 topics
  6. Clinical Practice Guidelines5▲ 14×10 topics
  7. Tumor Microenvironment4▲ 17×5 topics
  8. Pancreatic Cancer4▲ 63×1 topic
  9. Surgical Complications4▲ 85×1 topic
  10. Diagnosis4▲ 7.3×13 topics
  11. Survival Analysis4▲ 22×5 topics
  12. Surgical Management4▲ 14×8 topics
  13. Prognostic Factors3▲ 13×8 topics
  14. Cholangiocarcinoma3▲ 63×2 topics
  15. Endoscopic Resection3▲ 50×2 topics
  16. Complications3▲ 9.0×9 topics
  17. Molecular Characterization3▲ 24×4 topics
  18. Adjuvant Therapy2▲ 34×2 topics
  19. Gastric Cancer2▲ 38×3 topics
  20. Cholecystitis2▲ 88×1 topic
  21. ERCP2▲ 88×1 topic
  22. Neoadjuvant Chemotherapy2▲ 44×2 topics
  23. Lymph Node Dissection2▲ 61×1 topic
  24. Metastatic Gastric Cancer2▲ 61×1 topic
  25. Imatinib Mesylate2▲ 67×1 topic
  26. PET Imaging2▲ 20×3 topics
  27. Sunitinib2▲ 122×1 topic
  28. Endoscopic Stenting2▲ 66×1 topic
  29. Esophageal Perforation2▲ 66×1 topic
  30. Genetic Mutations2▲ 7.2×5 topics
  31. Children2▲ 11×2 topics
  32. Diagnostic Criteria2▲ 12×4 topics
  33. Imaging2▲ 11×3 topics
  34. Autoantibodies2▲ 11×5 topics
  35. Guidelines2▲ 5.5×5 topics
  36. Intussusception2▲ 75×1 topic
  37. Meckel's Diverticulum2▲ 75×1 topic
  38. Preoperative Chemoradiotherapy2▲ 33×2 topics
  39. Colorectal Cancer1▲ 29×3 topics
  40. Surgery1▲ 6.8×4 topics

Which research topics does Tonan Hospital publish most on?

By volume in 2022–2025: Pancreatic and Hepatic Oncology Research, Gallbladder and Bile Duct Disorders, Gastric Cancer Management and Outcomes and Gastrointestinal Tumor Research and Treatment.

Pancreatic and Hepatic O…4Pancreatic and Hepatic Oncology Research: 4 fractional worksGallbladder and Bile Duct Disorders: 2 fractional worksGastric Cancer Managemen…2Gastric Cancer Management and Outcomes: 2 fractional worksGastrointestinal Tumor R…2Gastrointestinal Tumor Research and Treatment: 2 fractional worksEsophageal and GI Pathology: 2 fractional worksGastrointestinal disorders and treatments: 2 fractional worksVascular Malformations a…1Vascular Malformations and Hemangiomas: 1 fractional worksColorectal Cancer Screening and Detection: 1 fractional worksNeuroendocrine Tumor Research Advances: 1 fractional worksEsophageal Cancer Research and Treatment: 1 fractional works
OncologyPulmonary and Respiratory MedicineGastroenterologySurgery1 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Pancreatic and Hepatic Oncology Research Oncology 4 works
  2. 2 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 2 works
  3. 3 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 2 works
  4. 4 Gastrointestinal Tumor Research and Treatment Gastroenterology 2 works
  5. 5 Esophageal and GI Pathology Surgery 2 works
  6. 6 Gastrointestinal disorders and treatments Surgery 2 works
  7. 7 Vascular Malformations and Hemangiomas Surgery 1 works
  8. 8 Colorectal Cancer Screening and Detection Oncology 1 works
  9. 9 Neuroendocrine Tumor Research Advances Epidemiology 1 works
  10. 10 Esophageal Cancer Research and Treatment Surgery 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available56.3%not open43.7%

World: 28% of research is openly available.

with international co-authors7.4%domestic only92.6%

World: 19% is written across borders.

How has Tonan Hospital's research output changed?

Output in 2018–2022 was 16% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Sapporo

All research institutions in Sapporo

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.