title: An epidemiological study of gastric to duodenal ulcer ratio in Asian countries.
authors.affiliation: Department of Preventive Medicine, Kyoto Prefectural University of Medicine, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawai
authors.forename: Y
authors.initials: Y
authors.lastname: Watanabe
authors.forename: K
authors.initials: K
authors.lastname: Hayashi
mesh_terms: D001208:Asia / Q000453:epidemiology; D004032:Diet / Q000009:adverse effects*; D004381:Duodenal Ulcer / Q000453:epidemiology*; D006801:Humans; D013274:Stomach Neoplasms / Q000209:etiology / Q000401:mortality; D013276:Stomach Ulcer / Q000150:complications / Q000453:epidemiology*