Validity of a questionnaire for diagnosis of peptic ulcer in an ethnically heterogeneous population.
D000328:Adult; D004064:Digestive System / Q000000981:diagnostic imaging; D004812:Epidemiologic Methods; D005006:Ethnicity; D005260:Female; D006801:Humans; D007557:Israel; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis*; D011859:Radiography; D011795:Surveys and Questionnaires