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Hospital / health system · Matsumoto · Japan

Aizawa Hospital

In research, Aizawa Hospital stands highest in Medicine (#5,053 of 8,541 worldwide) and Health Sciences (#6,176 of 9,902 worldwide), 2022-now.

ai-hosp.or.jpROR OpenAlex
World rank, 2022-now
#20,452
of 22,385 · #26,466 all time
Rank in Japan
#708
of 924
Research works
613
▼ 28% vs 2018-21
Citations
5.4k
8.9 per fractional work
Top-10% rate
4.4%
all institutions 10.0%
vs its own fields
0.95×
1.00× is exactly expected
Open access
59%
world 40%
International
7%
world 18%
Aizawa Hospital

What is Aizawa 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 #5,053 of 8,541 4.1%71 #9140
Health SciencesDomain #6,176 of 9,902 4.4%74 #11153

Each strip is that field's whole ranked pool, with the notch where Aizawa 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 Aizawa Hospital work in?

In 2022-now, 82% of research at Aizawa Hospital is in Health Sciences, 10% in Life Sciences. Its largest fields are Medicine (79%), Biochemistry, Genetics and Molecular Biology (5%), Engineering (5%). It does 3.3× the world's share of Health Sciences.

Health Sciences: 81 fractional works · 82.3% of its workMedicine: 78 fractional works · 79.5% of its workSurgery: 17 fractional works · 17.2% of its workPulmonary and Respiratory Medicine: 12 fractional works · 12.0% of its workOncology: 6 fractional works · 5.8% of its workNeurology: 6 fractional works · 5.8% of its workEpidemiology: 4 fractional works · 4.5% of its workRadiology, Nuclear Medicine and Imaging: 3 fractional works · 3.2% of its workPathology and Forensic Medicine: 3 fractional works · 3.2% of its workEndocrinology, Diabetes and Metabolism: 3 fractional works · 2.7% of its workCardiology and Cardiovascular Medicine: 3 fractional works · 2.6% of its workDermatology: 2 fractional works · 2.2% of its workGenetics: 2 fractional works · 1.9% of its workPhysiology: 2 fractional works · 1.6% of its workEmergency Medicine: 1 fractional works · 1.4% of its workRehabilitation: 1 fractional works · 1.4% of its workGastroenterology: 1 fractional works · 1.3% of its workHepatology: 1 fractional works · 1.3% of its workRheumatology: 1 fractional works · 1.3% of its workPsychiatry and Mental health: 1 fractional works · 1.1% of its workOphthalmology: 1 fractional works · 1.0% of its workNephrology: 1 fractional works · 1.0% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 1.0% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.9% of its workReproductive Medicine: 1 fractional works · 0.8% of its workOtorhinolaryngology: 1 fractional works · 0.7% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.6% of its workGeriatrics and Gerontology: 1 fractional works · 0.6% of its workInfectious Diseases: 0 fractional works · 0.5% of its workUrology: 0 fractional works · 0.4% of its workOrthopedics and Sports Medicine: 0 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.9% of its workHealth Professions: 2 fractional works · 2.2% of its workGeneral Health Professions: 1 fractional works · 0.6% of its workPhysical Therapy, Sports Therapy and Rehabilitation: 1 fractional works · 0.6% of its workPharmacy: 0 fractional works · 0.4% of its workSpeech and Hearing: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workNursing: 0 fractional works · 0.3% of its workNutrition and Dietetics: 0 fractional works · 0.3% of its workDentistry: 0 fractional works · 0.2% of its workVeterinary: 0 fractional works · 0.1% of its workLife Sciences: 10 fractional works · 9.7% of its workBiochemistry, Genetics and Molecular Biology: 5 fractional works · 5.2% of its workGenetics: 2 fractional works · 1.8% of its workMolecular Biology: 2 fractional works · 1.5% of its workCell Biology: 1 fractional works · 0.9% of its workCancer Research: 1 fractional works · 0.7% of its workClinical Biochemistry: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 3 fractional works · 2.6% of its workNeurology: 2 fractional works · 1.6% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.6% of its workCognitive Neuroscience: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 1 fractional works · 0.9% of its workImmunology: 1 fractional works · 0.6% of its workMicrobiology: 0 fractional works · 0.4% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.7% of its workPharmacology: 1 fractional works · 0.7% of its workAgricultural and Biological Sciences: 0 fractional works · 0.3% of its workPlant Science: 0 fractional works · 0.3% of its workPhysical Sciences: 6 fractional works · 6.1% of its workEngineering: 4 fractional works · 4.5% of its workBiomedical Engineering: 1 fractional works · 1.1% of its workMechanical Engineering: 1 fractional works · 1.0% of its workCivil and Structural Engineering: 1 fractional works · 0.7% of its workMechanics of Materials: 1 fractional works · 0.6% of its workControl and Systems Engineering: 0 fractional works · 0.3% of its workIndustrial and Manufacturing Engineering: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.5% of its workPhysics and Astronomy: 0 fractional works · 0.5% of its workRadiation: 0 fractional works · 0.5% of its workMaterials Science: 0 fractional works · 0.5% of its workMaterials Chemistry: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workComputer Science: 0 fractional works · 0.4% of its workInformation Systems: 0 fractional works · 0.4% of its workEnvironmental Science: 0 fractional works · 0.2% of its workSocial Sciences: 2 fractional works · 1.8% of its workBusiness, Management and Accounting: 0 fractional works · 0.5% of its workManagement of Technology and Innovation: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workPsychology: 0 fractional works · 0.4% of its workClinical Psychology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workArts and Humanities: 0 fractional works · 0.3% of its workHistory: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.3% of its workEconomics and Econometrics: 0 fractional works · 0.3% of its workSocial Sciences: 0 fractional works · 0.3% of its workALL ITS WORKAizawa Hospital98fractional works, 2022-now
Life Sciences10%Physical Sciences6%Health Sciences82%Social Sciences2%

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 20 fields, with their numbers
    1. Medicine7879.5%
    2. Health Professions22.2%
    3. Nursing00.3%
    4. Dentistry00.2%
    5. Veterinary00.1%
    1. Biochemistry, Genetics and Molecular Biology55.2%
    2. Neuroscience32.6%
    3. Immunology and Microbiology10.9%
    4. Pharmacology, Toxicology and Pharmaceutics10.7%
    5. Agricultural and Biological Sciences00.3%
    1. Engineering44.5%
    2. Physics and Astronomy00.5%
    3. Materials Science00.5%
    4. Computer Science00.4%
    5. Environmental Science00.2%
    1. Business, Management and Accounting00.5%
    2. Psychology00.4%
    3. Arts and Humanities00.3%
    4. Economics, Econometrics and Finance00.3%
    5. Social Sciences00.3%
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: 0.07× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.98× its world share, 5 worksBiochemistry, Geneti…Immunology and Microbiology: 0.92× its world share, 1 worksImmunology and Micro…Neuroscience: 1.58× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.93× its world share, 1 worksPharmacology, Toxico…Computer Science: 0.05× its world share, 0 worksComputer ScienceEngineering: 0.30× its world share, 4 worksEngineeringEnvironmental Science: 0.04× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.14× its world share, 0 worksMaterials SciencePhysics and Astronomy: 0.23× its world share, 0 worksPhysics and AstronomyDentistry: 0.36× its world share, 0 worksDentistryHealth Professions: 0.85× its world share, 2 worksHealth ProfessionsMedicine: 4.13× its world share, 78 worksMedicineNursing: 0.69× its world share, 0 worksNursingVeterinary: 0.83× its world share, 0 worksVeterinaryArts and Humanities: 0.12× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.16× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.16× its world share, 0 worksEconomics, Econometr…Psychology: 0.12× its world share, 0 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, 4.1×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Medicine4.13×78 works
  2. Pharmacology, Toxicology and Pharmaceutics1.93×1 works
  3. Neuroscience1.58×2 works
  4. Biochemistry, Genetics and Molecular Biology0.98×5 works
  5. Immunology and Microbiology0.92×1 works
  6. Health Professions0.85×2 works
  7. Veterinary0.83×0 works
  8. Nursing0.69×0 works
  9. Dentistry0.36×0 works
  10. Engineering0.30×4 works
  11. Physics and Astronomy0.23×0 works
  12. Business, Management and Accounting0.16×0 works
  13. Economics, Econometrics and Finance0.16×0 works
  14. Materials Science0.14×0 works
  15. Arts and Humanities0.12×0 works
  16. Psychology0.12×0 works
  17. Agricultural and Biological Sciences0.07×0 works
  18. Computer Science0.05×0 works
  19. Environmental Science0.04×0 works
  20. Social Sciences0.02×0 works

Who are the top researchers at Aizawa Hospital?

Ranked on the quality score, Shoji Yomo, Shinichi Ogawa and Masato Nakamura lead among researchers whose main affiliation is Aizawa Hospital.

  1. 1 Shoji Yomo Japan · #633,158 worldwide 4.8k citations · 108 works
  2. 2 Shinichi Ogawa Japan · #782,688 worldwide 1.9k citations · 45 works
  3. 3 Masato Nakamura Japan · #2,401,614 worldwide 61 citations · 19 works
  4. 4 Kazuko Hirabayashi Japan · #3,484,388 worldwide 1k citations · 46 works
  5. 5 Hideo Koike Japan · #3,623,189 worldwide 862 citations · 39 works
  6. 6 Kazuhiro Oguchi Japan · #4,022,682 worldwide 1.2k citations · 95 works
  7. 7 Yoshiko Funase Japan · #4,049,136 worldwide 204 citations · 16 works
  8. 8 Takahiro Miyakoshi Japan · #4,571,295 worldwide 200 citations · 19 works
  9. 9 Masatake Miyamoto Japan · #5,109,107 worldwide 36 citations · 17 works
  10. 10 Kyota Oda Japan · #5,142,112 worldwide 310 citations · 23 works
All ranked researchers at Aizawa Hospital

What are the most cited papers from Aizawa Hospital?

The most cited paper from Aizawa Hospital is "Association of neural and physiological responses during voluntary emotion suppression" (Hideki Ohira, Michio Nomura, Naho Ichikawa et al., 2005), with 314 citations. Next come "Leucovorin, fluorouracil, and oxaliplatin plus bevacizumab versus S-1 and oxaliplatin plus bevacizumab in patients with metastatic colorectal cancer (SOFT): an open-label, non-inferiority, randomised phase 3 trial" (254) and "Evaluation of First-line Radiosurgery vs Whole-Brain Radiotherapy for Small Cell Lung Cancer Brain Metastases" (224).

Most cited papers
#PaperReleasedCitations
1 Association of neural and physiological responses during voluntary emotion suppression Hideki Ohira, Michio Nomura, Naho Ichikawa et al. · NeuroImage 25 Oct 2005 314
2 Leucovorin, fluorouracil, and oxaliplatin plus bevacizumab versus S-1 and oxaliplatin plus bevacizumab in patients with metastatic colorectal cancer (SOFT): an open-label, non-inferiority, randomised phase 3 trial Yasuhide Yamada, Daisuke Takahari, Hiroshi Matsumoto et al. · The Lancet Oncology 10 Nov 2013 254
3 Evaluation of First-line Radiosurgery vs Whole-Brain Radiotherapy for Small Cell Lung Cancer Brain Metastases Chad G. Rusthoven et al. · JAMA Oncology Open access 4 Jun 2020 224
4 Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ): a patient-based evaluation tool for hip-joint disease. The Subcommittee on Hip Disease Evaluation of the Clinical Outcome Committee of the Japanese Orthopaedic Association Tadami Matsumoto et al. · Journal of Orthopaedic Science Open access 2 Nov 2011 201
5 Electrocardiographic abnormalities in patients receiving hemodialysis Shinichi Abe, Mamoru Yoshizawa, Nagako Nakanishi et al. · American Heart Journal Jun 1996 188
All 61 most cited papers, with filters and sorting

Which keywords describe research at Aizawa Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Immunotherapy, Epidemiology, Complications, Treatment, Radiotherapy, Chemotherapy, Rehabilitation and Prognostic Factors.

▲ 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. Epidemiology11▲ 2.7×37 topics
  2. Immunotherapy8▲ 11×14 topics
  3. Complications6▲ 12×11 topics
  4. Treatment6▲ 5.0×17 topics
  5. Quality of Life5▲ 3.6×18 topics
  6. Chemotherapy5▲ 7.2×12 topics
  7. Diagnosis5▲ 5.5×16 topics
  8. Radiotherapy5▲ 12×8 topics
  9. Inflammation5▲ 2.3×19 topics
  10. Rehabilitation5▲ 12×10 topics
  11. Neurological Disorders4▲ 7.9×11 topics
  12. Prognostic Factors4▲ 10×9 topics
  13. Management4▲ 5.2×13 topics
  14. Surgery4▲ 11×8 topics
  15. Radiosurgery3▲ 38×4 topics
  16. Clinical Practice Guidelines3▲ 6.0×10 topics
  17. Risk Factors3▲ 2.7×11 topics
  18. Mortality3▲ 5.2×7 topics
  19. Molecular Characterization3▲ 16×5 topics
  20. Guidelines3▲ 5.5×9 topics
  21. Surgical Management3▲ 6.5×9 topics
  22. Children2▲ 11×4 topics
  23. Cognitive Function2▲ 14×2 topics
  24. Molecular Classification2▲ 16×3 topics
  25. Prognosis2▲ 7.2×6 topics
  26. Survival Analysis2▲ 8.9×5 topics
  27. Clinical Guidelines2▲ 8.0×5 topics
  28. Genetic Mutations2▲ 5.3×8 topics
  29. Blood-Brain Barrier2▲ 34×2 topics
  30. Brain Metastases2▲ 81×1 topic
  31. Elderly Patients2▲ 13×3 topics
  32. Whole-Brain Radiation Therapy2▲ 81×1 topic
  33. Adjuvant Therapy2▲ 17×2 topics
  34. Diagnostic Criteria2▲ 9.2×4 topics
  35. Gastric Cancer2▲ 18×3 topics
  36. Parkinson's Disease2▲ 7.6×5 topics
  37. Pathophysiology2▲ 6.5×5 topics
  38. Endoscopic Resection2▲ 17×2 topics
  39. Functional Recovery2▲ 11×3 topics
  40. Glioblastoma2▲ 24×1 topic

Which research topics does Aizawa Hospital publish most on?

By volume in 2022-now: Brain Metastases and Treatment, Glioma Diagnosis and Treatment, Hip and Femur Fractures and Gastric Cancer Management and Outcomes.

Brain Metastases and Tre…2Brain Metastases and Treatment: 2 fractional worksGlioma Diagnosis and Tre…2Glioma Diagnosis and Treatment: 2 fractional worksHip and Femur Fractures1Hip and Femur Fractures: 1 fractional worksGastric Cancer Managemen…1Gastric Cancer Management and Outcomes: 1 fractional worksElbow and Forearm Trauma Treatment: 1 fractional worksCancer Immunotherapy and Biomarkers: 1 fractional worksOrthopedic Surgery and R…1Orthopedic Surgery and Rehabilitation: 1 fractional worksForeign Body Medical Cases: 1 fractional worksAutoimmune Neurological Disorders and Treatments: 1 fractional worksFacial Nerve Paralysis T…1Facial Nerve Paralysis Treatment and Research: 1 fractional works
Pulmonary and Respiratory MedicineGeneticsSurgeryRehabilitation3 others

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

  1. 1 Brain Metastases and Treatment Pulmonary and Respiratory Medicine 2 works
  2. 2 Glioma Diagnosis and Treatment Genetics 2 works
  3. 3 Hip and Femur Fractures Surgery 1 works
  4. 4 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 1 works
  5. 5 Elbow and Forearm Trauma Treatment Rehabilitation 1 works
  6. 6 Cancer Immunotherapy and Biomarkers Oncology 1 works
  7. 7 Orthopedic Surgery and Rehabilitation Surgery 1 works
  8. 8 Foreign Body Medical Cases Radiology, Nuclear Medicine and Imaging 1 works
  9. 9 Autoimmune Neurological Disorders and Treatments Neurology 1 works
  10. 10 Facial Nerve Paralysis Treatment and Research Neurology 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 available58.9%not open41.1%

World: 40% of research is openly available.

with international co-authors6.6%domestic only93.4%

World: 18% is written across borders.

How has Aizawa Hospital's research output changed?

Output in 2022-2025 was 28% 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 Aizawa Hospital as a percentage of every work published that year, 0.00038% in 2024.

still counting0.00050%0.0010%Aizawa Hospital0.00037% in 202519801990200020102020

Fractional works of Aizawa 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 2025Aizawa Hospital5.2% in 20252020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 12.7% in 2014.

Other research institutions in Matsumoto

All research institutions in Matsumoto

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Aizawa Hospital on Science Explorer

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