The validity of the inclusion of "lupus headache" in the Systemic Lupus Erythematosus Disease Activity Index.
Davey
Richard
R
Bamford
John
J
Emery
Paul
P
D006261:Headache / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D015588:Observer Variation; D015203:Reproducibility of Results; D012720:Severity of Illness Index