The ultrastructure of articular cartilage in rheumatoid arthritis. A preliminary report.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000473:pathology* / Q000601:surgery; D002358:Cartilage, Articular / Q000473:pathology*; D006801:Humans; D007719:Knee Joint; D008854:Microscopy, Electron; D008875:Middle Aged