RT Journal Article SR Electronic T1 Natural killer cell activity in untreated systemic lupus erythematosus JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 417 OP 420 DO 10.1136/ard.41.4.417 VO 41 IS 4 A1 Kazuo Oshimi A1 Morito Sumiya A1 Nobuyuki Gonda A1 Shogo Kano A1 Fumimaro Takaku YR 1982 UL http://ard.bmj.com/content/41/4/417.abstract AB With strictly selected controls natural killer cell activity was evaluated in 10 untreated patients with systemic lupus erythematosus. Natural killer levels of the patients were significantly lower than those of the age- and sex-matched normal controls. Natural killer levels, however, did not correlate with disease activity.