Hepatobiliary diseases in tropical Africa--the Ibadan experience.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001660:Biliary Tract Diseases / Q000209:etiology; D002648:Child; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009549:Nigeria