- If donor is HLA matched cord blood, cord blood stem cells will be obtained from the New York Blood Center Cord Blood Registry (Tel 212-570-3230) which is an internationally recognized registry or, if a match is not available, from Stemcyte (626-821-9860) which is a commercial registry that specializes in minority donors or from National Marrow Donor Program (NMDP). One unit of HLA matched cord blood unit will be infused on day zero.