title: [Standards of X-ray examination for gastric mass survey].
authors.forename: Seiji
authors.initials: S
authors.lastname: Sato
mesh_terms: D006801:Humans; D008403:Mass Screening / Q000379:methods*; D011187:Posture; D011859:Radiography / Q000379:methods* / Q000592:standards*; D013270:Stomach / Q000000981:diagnostic imaging*; D013274:Stomach Neoplasms / Q000517:prevention & control*