Record number of gallstones.
D000368:Aged; D000369:Aged, 80 and over; D002769:Cholelithiasis / Q000150:complications / Q000473:pathology*; D005260:Female; D005704:Gallbladder / Q000473:pathology*; D005706:Gallbladder Neoplasms / Q000150:complications / Q000473:pathology*; D006801:Humans