title: Proximal interphalangeal joint stiffness in rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000503:physiopathology* / Q000601:surgery; D005384:Finger Joint; D005385:Fingers / Q000601:surgery; D006801:Humans; D008023:Ligaments, Articular / Q000601:surgery; D009119:Muscle Contraction; D013585:Synovitis / Q000601:surgery