Clinical Efficacy of BK Virus Specific T-Cells in Treatment of Severe Refractory Hemorrhagic Cystitis after HLA Haploidentical Transplantation - Pello,O; Bradshaw,A; Innes,AJ; Finn,SA; Bray,E; Uddin,S; Olavarria,E; Apperley,J; Pavlu,J (American Society of Hematology, 2016)