Hepato-biliary disease in the elderly.
D000367:Age Factors; D000368:Aged; D001660:Biliary Tract Diseases / Q000453:epidemiology* / Q000401:mortality; D001661:Biliary Tract Neoplasms / Q000453:epidemiology / Q000401:mortality; D002769:Cholelithiasis / Q000453:epidemiology / Q000401:mortality; D006801:Humans; D008107:Liver Diseases / Q000453:epidemiology* / Q000401:mortality; D008113:Liver Neoplasms / Q000453:epidemiology / Q000401:mortality