Gastrointestinal and liver function of old age.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D056486:Chemical and Drug Induced Liver Injury; D004068:Digestive System Physiological Phenomena; D005260:Female; D005704:Gallbladder / Q000502:physiology; D005705:Gallbladder Diseases / Q000503:physiopathology; D005746:Gastric Emptying; D005753:Gastric Mucosa / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007408:Intestinal Absorption; D008099:Liver / Q000502:physiology*; D008107:Liver Diseases / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000033:anatomy & histology / Q000473:pathology / Q000502:physiology*