Correction: Cryopreservation of unrelated donor hematopoietic stem cells: the right answer for transplantations during the COVID-19 pandemic? - Fernandez-Sojo J; Azqueta C; Valdivia E; Martorell L; Medina-Boronat L; Martínez-Llonch N; Torrents S; Codinach M; Canals C; Elorza I; Parody R; Martino R; et al. (Bone marrow transplantation, 2024)