190. DETECTION OF CIRCULATING PR3-SPECIFIC B CELLS IN PATIENTS WITH ACTIVE ANCA-ASSOCIATED VASCULITIS. (29th March 2019) - Cornec, Divi; Berti, Alvise; Hummel, Amber; Carmona, Eva; Peikert, Tobias; Langford, Carol; Monach, Paul; Merkel, Peter; Seo, Philip; Spiera, Robert; Clair, E. William St; Fervenza, Fernando; et al.