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Hospital / health system · Tokyo · Japan

Saiseikai Central Hospital

In research, Saiseikai Central Hospital stands highest in Medicine (#6,719 of 8,541 worldwide) and Health Sciences (#7,938 of 9,902 worldwide), 2022-now.

saichu.jpROR OpenAlex
World rank, 2022-now
#21,485
of 22,385 · #26,105 all time
Rank in Japan
#796
of 924
Research works
961
▼ 9% vs 2018-21
Citations
12k
12.1 per fractional work
Top-10% rate
5.7%
all institutions 10.0%
vs its own fields
0.89×
1.00× is exactly expected
Open access
42%
world 40%
International
5%
world 18%
Saiseikai Central Hospital

What is Saiseikai Central Hospital known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #6,719 of 8,541 5.3%83 #8250
Health SciencesDomain #7,938 of 9,902 5.3%85 #10049

Each strip is that field's whole ranked pool, with the notch where Saiseikai Central 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does Saiseikai Central Hospital work in?

In 2022-now, 85% of research at Saiseikai Central Hospital is in Health Sciences, 11% in Life Sciences. Its largest fields are Medicine (82%), Biochemistry, Genetics and Molecular Biology (7%), Health Professions (2%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 95 fractional works · 84.8% of its workMedicine: 92 fractional works · 82.0% of its workSurgery: 20 fractional works · 17.8% of its workPulmonary and Respiratory Medicine: 17 fractional works · 15.6% of its workCardiology and Cardiovascular Medicine: 8 fractional works · 7.2% of its workOncology: 5 fractional works · 4.3% of its workRheumatology: 4 fractional works · 3.5% of its workInfectious Diseases: 4 fractional works · 3.5% of its workEndocrinology, Diabetes and Metabolism: 4 fractional works · 3.2% of its workEpidemiology: 3 fractional works · 2.8% of its workNeurology: 3 fractional works · 2.6% of its workNephrology: 3 fractional works · 2.6% of its workRadiology, Nuclear Medicine and Imaging: 2 fractional works · 1.8% of its workGastroenterology: 2 fractional works · 1.7% of its workObstetrics and Gynecology: 2 fractional works · 1.4% of its workDermatology: 2 fractional works · 1.4% of its workHematology: 1 fractional works · 1.3% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 1.2% of its workPhysiology: 1 fractional works · 1.2% of its workPathology and Forensic Medicine: 1 fractional works · 1.1% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 1.0% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.8% of its workGenetics: 1 fractional works · 0.8% of its workEmergency Medicine: 1 fractional works · 0.7% of its workPsychiatry and Mental health: 1 fractional works · 0.6% of its workOphthalmology: 1 fractional works · 0.5% of its workPharmacology: 1 fractional works · 0.5% of its workHepatology: 0 fractional works · 0.4% of its workReproductive Medicine: 0 fractional works · 0.4% of its workInternal Medicine: 0 fractional works · 0.4% of its workRehabilitation: 0 fractional works · 0.3% of its workImmunology and Allergy: 0 fractional works · 0.3% of its workHealth Informatics: 0 fractional works · 0.3% of its workCritical Care and Intensive Care Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.5% of its workHealth Professions: 3 fractional works · 2.4% of its workEmergency Medical Services: 1 fractional works · 0.8% of its workGeneral Health Professions: 0 fractional works · 0.4% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 0 fractional works · 0.4% of its workComplementary and Manual Therapy: 0 fractional works · 0.3% of its workPharmacy: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNursing: 0 fractional works · 0.2% of its workNutrition and Dietetics: 0 fractional works · 0.2% of its workVeterinary: 0 fractional works · 0.2% of its workLife Sciences: 13 fractional works · 11.4% of its workBiochemistry, Genetics and Molecular Biology: 8 fractional works · 6.8% of its workMolecular Biology: 3 fractional works · 2.8% of its workGenetics: 2 fractional works · 2.0% of its workClinical Biochemistry: 0 fractional works · 0.4% of its workCancer Research: 0 fractional works · 0.4% of its workBiophysics: 0 fractional works · 0.3% of its workEndocrinology: 0 fractional works · 0.3% of its workMolecular Medicine: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 3 fractional works · 2.3% of its workImmunology: 2 fractional works · 1.9% of its workMicrobiology: 0 fractional works · 0.4% of its workNeuroscience: 2 fractional works · 1.8% of its workCognitive Neuroscience: 1 fractional works · 1.0% of its workNeurology: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.6% of its workAgricultural and Biological Sciences: 0 fractional works · 0.4% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.0% of its workPhysical Sciences: 3 fractional works · 2.8% of its workEngineering: 1 fractional works · 1.3% of its workBiomedical Engineering: 1 fractional works · 1.3% of its workEnvironmental Science: 1 fractional works · 0.6% of its workEcology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.0% of its workPhysics and Astronomy: 1 fractional works · 0.5% of its workRadiation: 1 fractional works · 0.5% of its workMathematics: 0 fractional works · 0.2% of its workComputer Science: 0 fractional works · 0.1% of its workMaterials Science: 0 fractional works · 0.1% of its workSocial Sciences: 1 fractional works · 1.0% of its workPsychology: 1 fractional works · 0.5% of its workClinical Psychology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.2% of its workALL ITS WORKSaiseikai CentralHospital112fractional works, 2022-now
Life Sciences11%Physical Sciences3%Health Sciences85%Social Sciences1%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 18 fields, with their numbers
    1. Medicine9282.0%
    2. Health Professions32.4%
    3. Nursing00.2%
    4. Veterinary00.2%
    1. Biochemistry, Genetics and Molecular Biology86.8%
    2. Immunology and Microbiology32.3%
    3. Neuroscience21.8%
    4. Agricultural and Biological Sciences00.4%
    5. Pharmacology, Toxicology and Pharmaceutics00.0%
    1. Engineering11.3%
    2. Environmental Science10.6%
    3. Physics and Astronomy10.5%
    4. Mathematics00.2%
    5. Computer Science00.1%
    6. Materials Science00.1%
    1. Psychology10.5%
    2. Social Sciences00.3%
    3. Economics, Econometrics and Finance00.2%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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: 1.28× its world share, 8 worksBiochemistry, Geneti…Immunology and Microbiology: 2.30× its world share, 3 worksImmunology and Micro…Neuroscience: 1.12× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.11× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.01× its world share, 0 worksComputer ScienceEngineering: 0.09× its world share, 2 worksEngineeringEnvironmental Science: 0.12× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.03× its world share, 0 worksMaterials ScienceMathematics: 0.15× its world share, 0 worksMathematicsPhysics and Astronomy: 0.21× its world share, 0 worksPhysics and AstronomyHealth Professions: 0.92× its world share, 3 worksHealth ProfessionsMedicine: 4.27× its world share, 92 worksMedicineNursing: 0.47× its world share, 0 worksNursingVeterinary: 1.17× its world share, 0 worksVeterinaryEconomics, Econometrics and Finance: 0.10× its world share, 0 worksEconomics, Econometr…Psychology: 0.17× its world share, 1 worksPsychologySocial Sciences: 0.02× its world share, 0 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.

All 18 fields, with their numbers
  1. Medicine4.27×92 works
  2. Immunology and Microbiology2.30×3 works
  3. Biochemistry, Genetics and Molecular Biology1.28×8 works
  4. Veterinary1.17×0 works
  5. Neuroscience1.12×2 works
  6. Health Professions0.92×3 works
  7. Nursing0.47×0 works
  8. Physics and Astronomy0.21×0 works
  9. Psychology0.17×1 works
  10. Mathematics0.15×0 works
  11. Environmental Science0.12×1 works
  12. Pharmacology, Toxicology and Pharmaceutics0.11×0 works
  13. Economics, Econometrics and Finance0.10×0 works
  14. Agricultural and Biological Sciences0.09×0 works
  15. Engineering0.09×2 works
  16. Materials Science0.03×0 works
  17. Social Sciences0.02×0 works
  18. Computer Science0.01×0 works

Who are the top researchers at Saiseikai Central Hospital?

Ranked on the quality score, Morio Nakamura, Keiichi Suemasu and Ko‐Ron Chen lead among researchers whose main affiliation is Saiseikai Central Hospital.

  1. 1 Morio Nakamura Japan · #513,456 worldwide 5.2k citations · 133 works
  2. 2 Keiichi Suemasu Japan · #1,362,931 worldwide 5.9k citations · 158 works
  3. 3 Ko‐Ron Chen Japan · #1,640,035 worldwide 2.1k citations · 58 works
  4. 4 Hiroaki Nomori Japan · #2,141,424 worldwide 9.1k citations · 429 works
  5. 5 K Suemasu Japan · #2,496,088 worldwide 1.8k citations · 45 works
  6. 6 Haruhiko Hoshino Japan · #2,915,961 worldwide 1.3k citations · 106 works
  7. 7 Kiyoe Kato Japan · #2,926,118 worldwide 686 citations · 23 works
  8. 8 Takahide Kikuchi Japan · #3,837,421 worldwide 1.6k citations · 37 works
  9. 9 Susumu Nakagawa Japan · #3,918,771 worldwide 376 citations · 28 works
  10. 10 Shojiroh Morinaga Japan · #4,164,707 worldwide 2.4k citations · 106 works
All ranked researchers at Saiseikai Central Hospital

What are the most cited papers from Saiseikai Central Hospital?

The most cited paper from Saiseikai Central Hospital is "Mapping the human genetic architecture of COVID-19" (COVID-19 Host Genetics Initiative et al., 2021), with 1,130 citations. Next come "The 2015 World Health Organization Classification of Tumors of the Thymus: Continuity and Changes" (622) and "A Subtype of Diabetes Mellitus Associated with a Mutation of Mitochondrial DNA" (559).

Most cited papers
#PaperReleasedCitations
1 Mapping the human genetic architecture of COVID-19 COVID-19 Host Genetics Initiative et al. · Nature Open access3,896 authors 8 Jul 2021 1,130
2 The 2015 World Health Organization Classification of Tumors of the Thymus: Continuity and Changes Alexander Marx, John Chan, Jean‐Michel Coindre et al. · Journal of Thoracic Oncology Open access 21 Aug 2015 622
3 A Subtype of Diabetes Mellitus Associated with a Mutation of Mitochondrial DNA Takashi Kadowaki, Hiroko Kadowaki, Yasumichi Mori et al. · New England Journal of Medicine Open access 7 Apr 1994 559
4 Cilostazol for prevention of secondary stroke (CSPS 2): an aspirin-controlled, double-blind, randomised non-inferiority trial Yukito Shinohara, Yasuo Katayama, Shinichiro Uchiyama et al. · The Lancet Neurology 16 Sep 2010 490
5 Prevalence of atrial fibrillation in the general population of Japan: An analysis based on periodic health examination Hiroshi Inoue, Akira Fujiki, Hideki Origasa et al. · International Journal of Cardiology Open access 13 Aug 2008 436
All 60 most cited papers, with filters and sorting

Which keywords describe research at Saiseikai Central Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Risk Factors, Treatment, Guidelines, Heart Failure, Endovascular Repair and 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-now 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. Epidemiology15▲ 3.4×58 topics
  2. Diagnosis9▲ 8.7×24 topics
  3. Risk Factors9▲ 7.1×12 topics
  4. Treatment8▲ 6.2×23 topics
  5. Guidelines7▲ 14×11 topics
  6. Heart Failure7▲ 14×9 topics
  7. Endovascular Repair6▲ 60×3 topics
  8. Complications5▲ 9.6×11 topics
  9. Cardiovascular Disease5▲ 4.0×13 topics
  10. Chemotherapy5▲ 6.5×13 topics
  11. Prognostic Factors5▲ 10×10 topics
  12. Diabetes5▲ 8.3×8 topics
  13. Revascularization4▲ 26×3 topics
  14. Atherosclerosis4▲ 13×4 topics
  15. Immunotherapy4▲ 5.0×14 topics
  16. Surgical Management4▲ 8.6×9 topics
  17. Echocardiography4▲ 12×5 topics
  18. Percutaneous Coronary Intervention4▲ 25×4 topics
  19. Angioplasty4▲ 54×2 topics
  20. Thrombus Formation3▲ 41×3 topics
  21. Claudication3▲ 78×1 topic
  22. Clinical Practice Guidelines3▲ 5.3×10 topics
  23. Mortality3▲ 5.1×9 topics
  24. Peripheral Arterial Disease3▲ 78×1 topic
  25. Biomechanics3▲ 9.5×5 topics
  26. Chronic Kidney Disease3▲ 11×6 topics
  27. Genetic Susceptibility3▲ 29×2 topics
  28. Aneurysm Rupture3▲ 84×1 topic
  29. Aneurysm Screening3▲ 84×1 topic
  30. Surgery3▲ 7.7×7 topics
  31. Thrombosis3▲ 9.2×7 topics
  32. Genetic Mutations3▲ 5.4×10 topics
  33. Aortic Aneurysm2▲ 34×2 topics
  34. Critical Care2▲ 9.1×5 topics
  35. ACE2 Receptor2▲ 9.5×2 topics
  36. Glycemic Control2▲ 14×3 topics
  37. Insulin Therapy2▲ 17×3 topics
  38. Pathophysiology2▲ 7.5×6 topics
  39. SARS-CoV-22▲ 7.0×2 topics
  40. Imaging2▲ 8.4×3 topics

Which research topics does Saiseikai Central Hospital publish most on?

By volume in 2022-now: Peripheral Artery Disease Management, Aortic aneurysm repair treatments, Aortic Disease and Treatment Approaches and Vascular Procedures and Complications.

Peripheral Artery Disease Management: 3 fractional worksAortic aneurysm repair treatments: 3 fractional worksAortic Disease and Treatment Approaches: 2 fractional worksVascular Procedures and Complications: 2 fractional worksHeart Failure Treatment and Management: 2 fractional worksGastrointestinal disorders and treatments: 2 fractional worksCardiac Valve Diseases a…2Cardiac Valve Diseases and Treatments: 2 fractional worksElectrolyte and hormonal disorders: 1 fractional worksSoft tissue tumor case studies: 1 fractional worksCOVID-19 Clinical Resear…1COVID-19 Clinical Research Studies: 1 fractional works
SurgeryPulmonary and Respiratory MedicineCardiology and Cardiovascular MedicineRheumatology1 others

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

  1. 1 Peripheral Artery Disease Management Surgery 3 works
  2. 2 Aortic aneurysm repair treatments Pulmonary and Respiratory Medicine 3 works
  3. 3 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 2 works
  4. 4 Vascular Procedures and Complications Pulmonary and Respiratory Medicine 2 works
  5. 5 Heart Failure Treatment and Management Cardiology and Cardiovascular Medicine 2 works
  6. 6 Gastrointestinal disorders and treatments Surgery 2 works
  7. 7 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 2 works
  8. 8 Electrolyte and hormonal disorders Pulmonary and Respiratory Medicine 1 works
  9. 9 Soft tissue tumor case studies Rheumatology 1 works
  10. 10 COVID-19 Clinical Research Studies Infectious Diseases 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 available42.1%not open57.9%

World: 40% of research is openly available.

with international co-authors4.8%domestic only95.2%

World: 18% is written across borders.

How has Saiseikai Central Hospital's research output changed?

Output in 2022-2025 was 9% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Saiseikai Central Hospital as a percentage of every work published that year, 0.00036% in 2024.

still counting0.0020%0.0040%Saiseikai Central Hospital0.00044% in 202519801990200020102020

Fractional works of Saiseikai Central Hospital over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025Saiseikai Central Hospital2.6% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 11.7% in 2008.

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Saiseikai Central Hospital on Science Explorer

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