title: Letter: Synovial fluid in sarcoid arthritis.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000097:blood / Q000378:metabolism*; D006801:Humans; D008297:Male; D012507:Sarcoidosis / Q000097:blood / Q000378:metabolism*; D013582:Synovial Fluid / Q000032:analysis*