Osteoarthritis: is it a disease of cartilage or of bone?
D001847:Bone Diseases / Q000150:complications / Q000473:pathology*; D001842:Bone and Bones / Q000473:pathology; D002357:Cartilage Diseases / Q000150:complications / Q000473:pathology*; D002358:Cartilage, Articular / Q000473:pathology; D006801:Humans; D010003:Osteoarthritis / Q000209:etiology / Q000473:pathology*