title: Depression of synovial fluid complement activity and rheumatoid factor positivity.
mesh_terms: D001168:Arthritis / Q000276:immunology*; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D003165:Complement System Proteins / Q000032:analysis*; D006801:Humans; D007841:Latex Fixation Tests; D012217:Rheumatoid Factor / Q000032:analysis* / Q000097:blood; D013582:Synovial Fluid / Q000032:analysis*
chemical_list: D003165:Complement System Proteins; D012217:Rheumatoid Factor