On the presence of cholesterol in urinary calculi.
D000368:Aged; D002769:Cholelithiasis / Q000378:metabolism*; D002784:Cholesterol / Q000032:analysis*; D005260:Female; D006801:Humans; D012008:Recurrence; D014545:Urinary Calculi / Q000378:metabolism*
D002784:Cholesterol