The American college of rheumatology 1990 criteria for the classification of Wegeners granulomatosis - Leavitt, RY; Fauci, AS; Bloch, DA; Michel, BA; Hunder, GG; Arend, WP; Calabrese, LH; Fries, JF; Lie, JT; Lightfoot, RW; Masi, AT; Me Shane, DJ; Mills, JA; Stevens, MB; Wallace, SL; Zvaifler, NJ (Arthritis Rheum, 1990)