212. FOSTAMATINIB TREATMENT OF A NEW MODEL OF MPO-ANCA VASCULITIS IN WKY RATS INDUCED BY ADMINISTRATION OF A SUBNEPHRITOGENIC DOSE OF NEPHROTOXIC SERUM AFTER IMMUNIZATION WITH HUMAN MYELOPEROXIDASE. (29th March 2019) - Mcadoo, Stephen; Prendecki, Maria; Turner-Stokes, Tabitha; Bhangal, Gurjeet; Cook, Terry; Tam, Frederick; Pusey, Charles