Rheumatoid arthritis: ultrastructure of the synovium.
D001172:Arthritis, Rheumatoid / Q000473:pathology*; D005347:Fibroblasts; D006801:Humans; D008247:Lysosomes; D008854:Microscopy, Electron; D012217:Rheumatoid Factor; D013583:Synovial Membrane / Q000166:cytology*
D012217:Rheumatoid Factor