FO037 HLA ANTIBODY IMMUNIZATION: PREGNANCY AS A NATURAL SOURCE. - Burballa, Carla; Outon, Sara; Vazquez, Susana; Llinàs-Mallol, Laura; Redondo, Dolores; Pérez-Sáez, Maria José; Garcia, Carme; Mir, Marisa; Arias-Cabrales, Carlos; Pascual, Julio; Crespo, Marta (Nephrology Dialysis Transplantation, 2019)