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Hospital / health system · Utsunomiya · Japan

Tochigi Medical Center

In research, Tochigi Medical Center stands highest in Medicine (#5,409 of 8,541 worldwide) and Health Sciences (#6,682 of 9,902 worldwide), 2022-now. Relative to its size it is most specialised in Surgery (Surgery is 8.1× its share of world research).

tochigi-mc.jp/index.htmlROR OpenAlex
World rank, 2022-now
#20,862
of 22,385 · #23,821 all time
Rank in Japan
#742
of 924
Research works
620
▼ 16% vs 2018-21
Citations
6.7k
10.7 per fractional work
Top-10% rate
7.4%
all institutions 10.0%
vs its own fields
0.94×
1.00× is exactly expected
Open access
58%
world 40%
International
8%
world 18%
Tochigi Medical Center

What is Tochigi Medical Center 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 #5,409 of 8,541 6.0%71 #8693
Health SciencesDomain #6,682 of 9,902 5.8%75 #10703

Each strip is that field's whole ranked pool, with the notch where Tochigi Medical Center 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 Tochigi Medical Center work in?

In 2022-now, 80% of research at Tochigi Medical Center is in Health Sciences, 10% in Life Sciences. Its largest fields are Medicine (75%), Biochemistry, Genetics and Molecular Biology (6%), Engineering (3%). It does 3.2× the world's share of Health Sciences.

Health Sciences: 88 fractional works · 79.9% of its workMedicine: 83 fractional works · 75.4% of its workSurgery: 21 fractional works · 18.9% of its workPulmonary and Respiratory Medicine: 10 fractional works · 9.2% of its workOncology: 7 fractional works · 6.6% of its workEpidemiology: 5 fractional works · 4.8% of its workNeurology: 3 fractional works · 3.0% of its workCardiology and Cardiovascular Medicine: 3 fractional works · 2.8% of its workRheumatology: 3 fractional works · 2.4% of its workPhysiology: 3 fractional works · 2.3% of its workRadiology, Nuclear Medicine and Imaging: 2 fractional works · 2.3% of its workPathology and Forensic Medicine: 2 fractional works · 2.2% of its workInfectious Diseases: 2 fractional works · 1.9% of its workGastroenterology: 2 fractional works · 1.8% of its workEndocrinology, Diabetes and Metabolism: 2 fractional works · 1.8% of its workPublic Health, Environmental and Occupational Health: 2 fractional works · 1.6% of its workOrthopedics and Sports Medicine: 1 fractional works · 1.1% of its workPsychiatry and Mental health: 1 fractional works · 1.0% of its workGeriatrics and Gerontology: 1 fractional works · 1.0% of its workRehabilitation: 1 fractional works · 0.9% of its workObstetrics and Gynecology: 1 fractional works · 0.8% of its workEmergency Medicine: 1 fractional works · 0.7% of its workReproductive Medicine: 1 fractional works · 0.7% of its workNephrology: 1 fractional works · 0.7% of its workGenetics: 1 fractional works · 0.7% of its workUrology: 1 fractional works · 0.7% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.6% of its workInternal Medicine: 1 fractional works · 0.6% of its workOphthalmology: 1 fractional works · 0.5% of its workOtorhinolaryngology: 1 fractional works · 0.5% of its workPharmacology: 0 fractional works · 0.4% of its workImmunology and Allergy: 0 fractional works · 0.4% of its workHematology: 0 fractional works · 0.4% of its workCritical Care and Intensive Care Medicine: 0 fractional works · 0.3% of its workHepatology: 0 fractional works · 0.3% of its workAnesthesiology and Pain Medicine: 0 fractional works · 0.3% of its workDermatology: 0 fractional works · 0.3% of its workBiochemistry: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.4% of its workHealth Professions: 2 fractional works · 2.0% of its workGeneral Health Professions: 1 fractional works · 0.7% of its workEmergency Medical Services: 0 fractional works · 0.4% of its workOccupational Therapy: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.6% of its workDentistry: 2 fractional works · 1.9% of its workOral Surgery: 1 fractional works · 1.1% of its workPeriodontics: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNursing: 0 fractional works · 0.3% of its workNutrition and Dietetics: 0 fractional works · 0.3% of its workVeterinary: 0 fractional works · 0.3% of its workSmall Animals: 0 fractional works · 0.3% of its workLife Sciences: 12 fractional works · 10.5% of its workBiochemistry, Genetics and Molecular Biology: 7 fractional works · 6.3% of its workMolecular Biology: 4 fractional works · 3.4% of its workGenetics: 1 fractional works · 1.3% of its workCancer Research: 1 fractional works · 0.6% of its workCell Biology: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.5% of its workNeuroscience: 2 fractional works · 1.4% of its workCognitive Neuroscience: 1 fractional works · 0.6% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.2% of its workNeurology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.4% of its workImmunology and Microbiology: 1 fractional works · 1.3% of its workImmunology: 1 fractional works · 1.0% of its workSmaller subfields together: 0 fractional works · 0.3% of its workAgricultural and Biological Sciences: 1 fractional works · 1.2% of its workInsect Science: 0 fractional works · 0.4% of its workAnimal Science and Zoology: 0 fractional works · 0.2% of its workEcology, Evolution, Behavior and Systematics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.3% of its workPhysical Sciences: 8 fractional works · 7.4% of its workEngineering: 3 fractional works · 3.1% of its workBiomedical Engineering: 2 fractional works · 2.0% of its workCivil and Structural Engineering: 0 fractional works · 0.5% of its workAerospace Engineering: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.4% of its workPhysics and Astronomy: 1 fractional works · 1.1% of its workRadiation: 1 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.2% of its workChemistry: 1 fractional works · 0.9% of its workOrganic Chemistry: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 1 fractional works · 0.8% of its workNature and Landscape Conservation: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.5% of its workComputer Science: 1 fractional works · 0.8% of its workArtificial Intelligence: 1 fractional works · 0.5% of its workComputer Vision and Pattern Recognition: 0 fractional works · 0.3% of its workMaterials Science: 1 fractional works · 0.6% of its workPolymers and Plastics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.4% of its workEarth and Planetary Sciences: 0 fractional works · 0.2% of its workSocial Sciences: 2 fractional works · 2.2% of its workPsychology: 1 fractional works · 1.3% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.7% of its workClinical Psychology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 1 fractional works · 0.6% of its workLanguage and Linguistics: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.2% of its workDecision Sciences: 0 fractional works · 0.1% of its workALL ITS WORKTochigi MedicalCenter110fractional works, 2022-now
Life Sciences10%Physical Sciences7%Health Sciences80%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 21 fields, with their numbers
    1. Medicine8375.4%
    2. Health Professions22.0%
    3. Dentistry21.9%
    4. Nursing00.3%
    5. Veterinary00.3%
    1. Biochemistry, Genetics and Molecular Biology76.3%
    2. Neuroscience21.4%
    3. Immunology and Microbiology11.3%
    4. Agricultural and Biological Sciences11.2%
    5. Pharmacology, Toxicology and Pharmaceutics00.3%
    1. Engineering33.1%
    2. Physics and Astronomy11.1%
    3. Chemistry10.9%
    4. Environmental Science10.8%
    5. Computer Science10.8%
    6. Materials Science10.6%
    7. Earth and Planetary Sciences00.2%
    1. Psychology11.3%
    2. Arts and Humanities10.6%
    3. Social Sciences00.2%
    4. Decision Sciences00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Tochigi Medical Center specialise in?

Where its research is concentrated relative to its size: Surgery takes 8.1× the share of its output that it takes of world research.

  1. SurgerySubfield · 20.7 works8.1×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

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: 0.24× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.19× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 1.31× its world share, 2 worksImmunology and Micro…Neuroscience: 0.87× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.74× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.57× its world share, 1 worksChemistryComputer Science: 0.10× its world share, 1 worksComputer ScienceEarth and Planetary Sciences: 0.10× its world share, 0 worksEarth and Planetary …Engineering: 0.21× its world share, 3 worksEngineeringEnvironmental Science: 0.16× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.16× its world share, 1 worksMaterials SciencePhysics and Astronomy: 0.49× its world share, 1 worksPhysics and AstronomyDentistry: 3.91× its world share, 2 worksDentistryHealth Professions: 0.77× its world share, 2 worksHealth ProfessionsMedicine: 3.92× its world share, 83 worksMedicineNursing: 0.60× its world share, 0 worksNursingVeterinary: 2.05× its world share, 0 worksVeterinaryArts and Humanities: 0.21× its world share, 1 worksArts and HumanitiesDecision Sciences: 0.08× its world share, 0 worksDecision SciencesPsychology: 0.44× its world share, 2 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, 3.9×. Every wedge is a field page.

All 21 fields, with their numbers
  1. Medicine3.92×83 works
  2. Dentistry3.91×2 works
  3. Veterinary2.05×0 works
  4. Immunology and Microbiology1.31×2 works
  5. Biochemistry, Genetics and Molecular Biology1.19×7 works
  6. Neuroscience0.87×2 works
  7. Health Professions0.77×2 works
  8. Pharmacology, Toxicology and Pharmaceutics0.74×0 works
  9. Nursing0.60×0 works
  10. Chemistry0.57×1 works
  11. Physics and Astronomy0.49×1 works
  12. Psychology0.44×2 works
  13. Agricultural and Biological Sciences0.24×1 works
  14. Engineering0.21×3 works
  15. Arts and Humanities0.21×1 works
  16. Environmental Science0.16×1 works
  17. Materials Science0.16×1 works
  18. Computer Science0.10×1 works
  19. Earth and Planetary Sciences0.10×0 works
  20. Decision Sciences0.08×0 works
  21. Social Sciences0.02×0 works

Who are the top researchers at Tochigi Medical Center?

Ranked on the quality score, Kentaro Shima, Hideki Okata and Kenshi Omagari lead among researchers whose main affiliation is Tochigi Medical Center.

  1. 1 Kentaro Shima Japan · #2,877,116 worldwide 359 citations · 30 works
  2. 2 Hideki Okata Japan · #4,196,467 worldwide 152 citations · 22 works
  3. 3 Kenshi Omagari Japan · #4,341,959 worldwide 108 citations · 25 works
  4. 4 Jiro Izumi Japan · #4,385,315 worldwide 31 citations · 23 works
  5. 5 Masafumi Nishikawa Japan · #4,687,870 worldwide 216 citations · 19 works
  6. 6 Ichiro Uchiide Japan · #4,925,926 worldwide 331 citations · 28 works
  7. 7 Masao Sugamata Japan · #5,114,245 worldwide 1.9k citations · 79 works
  8. 8 Shuhzoh NAKAMURA Japan · #5,226,728 worldwide 31 citations · 16 works
  9. 9 Hiroyuki Kitabayashi Japan · #5,240,671 worldwide 211 citations · 19 works
  10. 10 Tohji TOMITA Japan · #5,310,693 worldwide 44 citations · 16 works
All ranked researchers at Tochigi Medical Center

What are the most cited papers from Tochigi Medical Center?

The most cited paper from Tochigi Medical Center is "Microcomputer Control for Sensorless Brushless Motor" (Kenichi IIZUKA, Hideo Uzuhashi, Minoru Kano et al., 1985), with 449 citations. Next come "The relationship between facet joint osteoarthritis and disc degeneration of the lumbar spine: an MRI study" (446) and "Nanoparticles Transferred from Pregnant Mice to Their Offspring Can Damage the Genital and Cranial Nerve Systems" (380).

Most cited papers
#PaperReleasedCitations
1 Microcomputer Control for Sensorless Brushless Motor Kenichi IIZUKA, Hideo Uzuhashi, Minoru Kano et al. · IEEE Transactions on Industry Applications May 1985 449
2 The relationship between facet joint osteoarthritis and disc degeneration of the lumbar spine: an MRI study Atsushi Fujiwara, Kazuya Tamai, Minoru Yamato et al. · European Spine Journal Open access 26 Oct 1999 446
3 Nanoparticles Transferred from Pregnant Mice to Their Offspring Can Damage the Genital and Cranial Nerve Systems Ken Takeda, Ken‐ichiro Suzuki, Aki Ishihara et al. · Eisei kagaku Open access 2009 380
4 Simultaneous determination of trichothecene mycotoxins and zearalenone in cereals by gas chromatography–mass spectrometry Toshitsugu Tanaka, Atsushi Yoneda, Shigeto Inoue et al. · Journal of Chromatography A Jun 2000 208
5 Accompanying Arteries of the Lesser Saphenous Vein and Sural Nerve: Anatomic Study and Its Clinical Applications Hideo Nakajima, Nobuaki Imanishi, Satoshi Fukuzumi et al. · Plastic & Reconstructive Surgery 1999 193
All 60 most cited papers, with filters and sorting

Which keywords describe research at Tochigi Medical Center?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Surgical Management, Treatment, Chemotherapy, Diagnosis, Prognostic Factors, Clinical Practice Guidelines 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. Epidemiology14▲ 3.2×60 topics
  2. Surgical Management9▲ 19×18 topics
  3. Treatment9▲ 6.5×28 topics
  4. Chemotherapy8▲ 9.9×14 topics
  5. Inflammation7▲ 3.0×39 topics
  6. Diagnosis7▲ 6.7×21 topics
  7. Clinical Practice Guidelines6▲ 9.8×12 topics
  8. Prognostic Factors6▲ 12×10 topics
  9. Complications5▲ 9.9×13 topics
  10. Immunotherapy5▲ 6.2×13 topics
  11. Radiotherapy4▲ 10×12 topics
  12. Quality of Life4▲ 2.2×22 topics
  13. Management3▲ 3.9×16 topics
  14. Risk Factors3▲ 2.8×17 topics
  15. Pathogenesis3▲ 6.0×13 topics
  16. Genetic Mutations3▲ 6.2×10 topics
  17. Prognosis3▲ 8.2×8 topics
  18. Survival Analysis3▲ 10.0×5 topics
  19. Molecular Characterization3▲ 14×4 topics
  20. Clinical Trials3▲ 3.7×7 topics
  21. Metastasis3▲ 7.1×6 topics
  22. Gastric Cancer3▲ 22×3 topics
  23. Neoadjuvant Therapy3▲ 9.8×5 topics
  24. Adjuvant Therapy2▲ 18×2 topics
  25. Prevention2▲ 5.1×8 topics
  26. Molecular Classification2▲ 13×4 topics
  27. Pathophysiology2▲ 6.8×5 topics
  28. Surgery2▲ 5.7×7 topics
  29. Tumor Microenvironment2▲ 4.4×5 topics
  30. Children2▲ 8.2×5 topics
  31. Endoscopic Resection2▲ 18×2 topics
  32. PET Imaging2▲ 11×3 topics
  33. Shoulder Function2▲ 21×2 topics
  34. Targeted Therapy2▲ 8.0×4 topics
  35. Laparoscopic Surgery2▲ 13×4 topics
  36. Lymph Node Dissection2▲ 28×1 topic
  37. Neoadjuvant Chemotherapy2▲ 19×1 topic
  38. Tumor Markers2▲ 19×2 topics
  39. Molecular Pathology2▲ 14×3 topics
  40. Surgical Complications2▲ 18×2 topics

Which research topics does Tochigi Medical Center publish most on?

By volume in 2022-now: Gastric Cancer Management and Outcomes, Pancreatic and Hepatic Oncology Research, Lung Cancer Research Studies and Shoulder Injury and Treatment.

Gastric Cancer Managemen…2Gastric Cancer Management and Outcomes: 2 fractional worksPancreatic and Hepatic O…1Pancreatic and Hepatic Oncology Research: 1 fractional worksLung Cancer Research Studies: 1 fractional worksShoulder Injury and Trea…1Shoulder Injury and Treatment: 1 fractional worksGastrointestinal Tumor R…1Gastrointestinal Tumor Research and Treatment: 1 fractional worksAmyloidosis: Diagnosis, Treatment, Outcomes: 1 fractional worksElbow and Forearm Trauma Treatment: 1 fractional worksTotal Knee Arthroplasty …1Total Knee Arthroplasty Outcomes: 1 fractional worksStreptococcal Infections and Treatments: 1 fractional worksGallbladder and Bile Duct Disorders: 1 fractional works
Pulmonary and Respiratory MedicineOncologySurgeryGastroenterology3 others

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

  1. 1 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 2 works
  2. 2 Pancreatic and Hepatic Oncology Research Oncology 1 works
  3. 3 Lung Cancer Research Studies Oncology 1 works
  4. 4 Shoulder Injury and Treatment Surgery 1 works
  5. 5 Gastrointestinal Tumor Research and Treatment Gastroenterology 1 works
  6. 6 Amyloidosis: Diagnosis, Treatment, Outcomes Molecular Biology 1 works
  7. 7 Elbow and Forearm Trauma Treatment Rehabilitation 1 works
  8. 8 Total Knee Arthroplasty Outcomes Surgery 1 works
  9. 9 Streptococcal Infections and Treatments Public Health, Environmental and Occupational Health 1 works
  10. 10 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 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 available57.7%not open42.3%

World: 40% of research is openly available.

with international co-authors7.7%domestic only92.3%

World: 18% is written across borders.

How has Tochigi Medical Center's research output changed?

Output in 2022-2025 was 16% 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 Tochigi Medical Center as a percentage of every work published that year, 0.00029% in 2024.

still counting0.0010%0.0020%Tochigi Medical Center0.00051% in 202519801990200020102020

Fractional works of Tochigi Medical Center 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 2025Tochigi Medical Center4.5% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 6.7% in 2017.

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Tochigi Medical Center on Science Explorer

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