Aging and the musculoskeletal system.
D000375:Aging; D000818:Animals; D004283:Dog Diseases / Q000175:diagnosis* / Q000628:therapy; D004285:Dogs / Q000502:physiology*; D009142:Musculoskeletal Physiological Phenomena; D010003:Osteoarthritis / Q000628:therapy / Q000662:veterinary*; D010024:Osteoporosis / Q000628:therapy / Q000662:veterinary*