Gallstones. An epidemiological investigation.
Jørgensen
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D000328:Adult; D000367:Age Factors; D000368:Aged; D002769:Cholelithiasis / Q000000981:diagnostic imaging / Q000453:epidemiology*; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity; D012737:Sex Factors; D014463:Ultrasonography