title: Electron-microscopic examination of immunocompetent cells in rheumatoid synovial membranes.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000921:Antibody-Producing Cells; D001172:Arthritis, Rheumatoid / Q000276:immunology / Q000473:pathology*; D002648:Child; D005260:Female; D006801:Humans; D007719:Knee Joint; D008214:Lymphocytes / Q000166:cytology / Q000276:immunology; D008264:Macrophages / Q000166:cytology; D008297:Male; D008407:Mast Cells / Q000166:cytology; D008854:Microscopy, Electron; D008875:Middle Aged; D010950:Plasma Cells / Q000166:cytology; D013583:Synovial Membrane / Q000473:pathology*