The ultrastructure of joint cartilage and its alteration in disease.
D001168:Arthritis / Q000473:pathology*; D001172:Arthritis, Rheumatoid / Q000473:pathology; D002358:Cartilage, Articular / Q000166:cytology* / Q000473:pathology*; D008855:Microscopy, Electron, Scanning; D010003:Osteoarthritis / Q000473:pathology