title: An epidemiologic approach to cholecystography. A pilot study in Ontario.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001835:Body Weight; D002648:Child; D002765:Cholecystography; D005006:Ethnicity; D005260:Female; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009864:Ontario; D010298:Parity; D012737:Sex Factors