title: Extra-articular causes of proximal interphalangeal joint stiffness in rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications / Q000473:pathology* / Q000601:surgery; D003286:Contracture / Q000150:complications; D005384:Finger Joint / Q000473:pathology*; D005385:Fingers / Q000473:pathology*; D006801:Humans; D000267:Tissue Adhesions / Q000150:complications