title: Synovial perfusion of clinically normal knee joints in patients with rheumatoid arthritis. An isotope study.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007270:Injections, Intra-Articular; D007717:Knee / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D011868:Radioisotopes; D012039:Regional Blood Flow; D013583:Synovial Membrane / Q000098:blood supply*; D014978:Xenon
chemical_list: D011868:Radioisotopes; D014978:Xenon