P1353: EFFICACY OF SARSCOV2 VACCINATION IN PATIENTS UNDERGOING AUTOLOGOUS STEM CELL TRANSPLANTATION. A MULTICENTER EXPERIENCE. (23rd June 2022) - Stirparo, L.; Autore, F.; Innocenti, I.; Papa, E.; Marchesi, F.; Togni, C.; Mariani, S.; Torrieri, L.; Salvatori, M.; Fazio, F.; Metafuni, E.; Giammarco, S.; et al.