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Researcher · Osaka International Cancer Institute · Japan

Hiroki Koyama

Hiroki Koyama publishes mostly in Pulmonary and Respiratory Medicine, Cancer Research and Pathology and Forensic Medicine, on topics such as Breast Cancer Treatment Studies, Breast Lesions and Carcinomas and Estrogen and related hormone effects.

OpenAlex
World rank
#1,309,108
of 1,633,909 ranked researchers
Rank in Japan
#84,137
of 114,622
Works
26
Citations
18
Citations per work
0.7

What does Hiroki Koyama research?

Pulmonary and Respiratory Medicine: 16.2%Cancer Research: 13.5%Pathology and Forensic Medicine: 13.5%Molecular Biology: 10.8%other fields: 46.0%16%top field
Pulmonary and Respiratory Medicine16.2%Cancer Research13.5%Pathology and Forensic Medicine13.5%Molecular Biology10.8%other fields46.0%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Pulmonary and Respiratory Medicine16% of their works
  2. 2Cancer Research14% of their works
  3. 3Pathology and Forensic Medicine14% of their works
  4. 4Molecular Biology11% of their works
  5. 5Surgery11% of their works
  6. 6Genetics8% of their works

Research topics

Which keywords describe Hiroki Koyama's research?

The keywords of their largest research topics: Breast Cancer, Radiotherapy, Breast Tumours, Gene Expression, Mammography, Ultrasound, Breast Reconstruction and DNA Barcoding.

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.

All 18 words, with their numbers
  1. Breast Cancer72 topics
  2. Radiotherapy72 topics
  3. Breast Tumours51 topic
  4. Gene Expression51 topic
  5. Mammography51 topic
  6. Ultrasound51 topic
  7. Breast Reconstruction21 topic
  8. DNA Barcoding21 topic
  9. Estrogen21 topic
  10. Food Authentication21 topic
  11. Loop-Mediated Isothermal Amplification21 topic
  12. Multiple Primary Cancers21 topic
  13. Paper-Based Microfluidics21 topic
  14. Patient-Reported Outcome Measure21 topic
  15. Receptor21 topic
  16. Second Primary Neoplasms21 topic
  17. Bacterial Therapy11 topic
  18. Tumor Targeting11 topic

Where does Hiroki Koyama work?

Hiroki Koyama's main affiliation in the publication record is Osaka International Cancer Institute, Japan.

How many publications and citations does Hiroki Koyama have?

Science Explorer counts 26 works and 18 citations for Hiroki Koyama, ranking #1,309,108 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised 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.

Other researchers named Hiroki Koyama

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