Hiroshi Koyama

271 papers and 5.5k indexed citations i.

About

Hiroshi Koyama is a scholar working on Pulmonary and Respiratory Medicine, Nutrition and Dietetics and Oncology. According to data from OpenAlex, Hiroshi Koyama has authored 271 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Pulmonary and Respiratory Medicine, 39 papers in Nutrition and Dietetics and 31 papers in Oncology. Recurrent topics in Hiroshi Koyama’s work include Chronic Obstructive Pulmonary Disease (COPD) Research (32 papers), Trace Elements in Health (31 papers) and Selenium in Biological Systems (25 papers). Hiroshi Koyama is often cited by papers focused on Chronic Obstructive Pulmonary Disease (COPD) Research (32 papers), Trace Elements in Health (31 papers) and Selenium in Biological Systems (25 papers). Hiroshi Koyama collaborates with scholars based in Japan, Indonesia and United States. Hiroshi Koyama's co-authors include Koichi Nishimura, Akihiko Ikeda, Mitsuhiro Tsukino, Takateru Izumi, Takashi Hajiro, Rizky Abdulah, Chiho Yamazaki, Minato Nakazawa, Satomi Kameo and Michiaki Mishima and has published in prestigious journals such as New England Journal of Medicine, PLoS ONE and American Journal of Clinical Nutrition.

In The Last Decade

Co-authorship network of co-authors of Hiroshi Koyama i

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Fields of papers citing papers by Hiroshi Koyama

Since Specialization

EngineeringComputer SciencePhysics and AstronomyMathematicsEarth and Planetary SciencesEnergyEnvironmental ScienceMaterials ScienceChemical EngineeringChemistryAgricultural and Biological SciencesVeterinaryDecision SciencesArts and HumanitiesBusiness, Management and AccountingSocial SciencesPsychologyEconomics, Econometrics and FinanceHealth ProfessionsDentistryMedicineBiochemistry, Genetics and Molecular BiologyNeuroscienceNursingImmunology and MicrobiologyPharmacology, Toxicology and Pharmaceutics

This network shows the specialization of papers citing the papers produced by Hiroshi Koyama. Nodes represent fields, and links connect fields that are likely to share authors. The network helps show where Hiroshi Koyama may publish in the future.

Countries citing papers authored by Hiroshi Koyama

Since Specialization

Citations

This map shows the geographic impact of Hiroshi Koyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hiroshi Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroshi Koyama more than expected).

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