Spike-Specific Memory B Cell Response in Hematopoietic Cell Transplantation Recipients following Multiple mRNA-1273 Vaccinations: A Longitudinal Observational Study. - Pettini E; Ciabattini A; Fiorino F; Polvere J; Pastore G; Tozzi M; Montagnani F; Marotta G; Bucalossi A; Medaglini D (Vaccines, 2024)