Shigeki Koyama

About

Shigeki Koyama is a scholar working on Surgery, Gastroenterology and Epidemiology. According to data from OpenAlex, Shigeki Koyama has authored 29 papers receiving a total of 419 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Surgery, 10 papers in Gastroenterology and 7 papers in Epidemiology. Recurrent topics in Shigeki Koyama’s work include Inflammatory Bowel Disease (6 papers), Helicobacter pylori-related gastroenterology studies (5 papers) and Esophageal Cancer Research and Treatment (4 papers). Shigeki Koyama is often cited by papers focused on Inflammatory Bowel Disease (6 papers), Helicobacter pylori-related gastroenterology studies (5 papers) and Esophageal Cancer Research and Treatment (4 papers). Shigeki Koyama collaborates with scholars based in Japan and United States. Shigeki Koyama's co-authors include Akira Andoh, Yoshihide Fujiyama, Tadao Bamba, Masaya Sasaki and Tomoyuki Tsujikawa and has published in prestigious journals such as Gastroenterology, Free Radical Biology and Medicine and Journal of Gastroenterology and Hepatology.

In The Last Decade

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

Countries citing papers authored by Shigeki Koyama

Since Specialization

Citations

This map shows the geographic impact of Shigeki 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 Shigeki Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Shigeki Koyama more than expected).

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