Hosoi H, Murata S, Suzuki T, Li T-C, Hatanaka K, Tanaka-Taya K, Mushino T, Kuriyama K, Tamura S, Hanaoka N, et al. A cluster of BK polyomavirus-associated hemorrhagic cystitis after allogeneic hematopoietic stem cell transplantation. Transpl Infect Dis. 2021.