.
The participating patients from 4 medical centers (Pusan National University Hospital, Busan Haeundae Paik Hospital, Gyeong-Sang National University Hospital, and Gachon University Gil Medical Center) were ineligible for HLA-identical sibling donor BMT, and had not received prior IST with any ATG or CsA. Approval for reviewing the patient records was obtained from each Institu- tional Review Board.