peripheral blood mononuclear cells ( pbmc ) from 30 patients with definite or classic active rheumatoid arthritis who were on no remittive drugs were studied for spontaneous and pokeweed mitogen ( pwm ) -stimulated immunoglobulin plaque-forming cell frequency ( igpfc ) , spontaneous igm-rheumatoid factor ( igm-rf ) secretion , and in vitro proliferative responses to soluble recall antigens .
C1321301
peripheral blood mononuclear cells
C0007634
cell