Preliminary criteria for global flares in childhood-onset systemic lupus erythematosus.

Brunner HI, Mina R, Pilkington C, Beresford MW, Reiff A, Levy DM, Tucker LB, Eberhard BA, Ravelli A, Schanberg LE, Saad-Magalhaes C, Higgins GC, Onel K, Singer NG, von Scheven E, Itert L, Klein-Gitelman MS, Punaro M, Ying J, Giannini EH