P1365: DONOR LYMPHOCYTE INFUSION IN ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION: RESULTS FROM A RETROSPECTIVE STUDY. (23rd June 2022) - Rochate, D.; Vasconcelos, F.; Couto, E.; Silva Coelho, P.; Leite, L.; Branca, R.; Roncón, S.; Pinho Vaz, C.; Campos, A.