Gall-stones: geographical and chronological features.
D000349:Africa; D000368:Aged; D001344:Autopsy; D001660:Biliary Tract Diseases / Q000453:epidemiology; D001663:Bilirubin / Q000032:analysis; D002118:Calcium / Q000032:analysis; D050260:Carbohydrate Metabolism; D002763:Cholecystectomy; D002769:Cholelithiasis / Q000453:epidemiology*; D002784:Cholesterol / Q000032:analysis; D003906:Developing Countries; D005260:Female; D006801:Humans; D007194:India; D008019:Life Style; D008297:Male; D008875:Middle Aged; D044469:Racial Groups; D012424:Rural Population; D014481:United States
D002784:Cholesterol; D001663:Bilirubin; D002118:Calcium