Immunoglobulin levels in rheumatoid arthritis: comparison with rheumatoid factor titers, clinical stage and disease duration.
D000328:Adult; D000375:Aging; D001172:Arthritis, Rheumatoid / Q000097:blood*; D005260:Female; D006801:Humans; D007122:Immunoelectrophoresis; D008297:Male; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000032:analysis*; D012723:Sex; D005719:gamma-Globulins / Q000032:analysis*
D005719:gamma-Globulins; D012217:Rheumatoid Factor