The use of umbilical cord blood in mismatched related and unrelated hemopoietic stem cell transplantation. Recently, mesenchymal stem cell proliferation was established successfully from human umbilical cord blood. - Umbilical cord blood stem cell bank cryopreserved after baby's birth for therapeutic purposes. Unrelated donor stem cell transplantation (HSCT) in children with acute leukaemia: risks and benefits of umbilical cord blood (CB) vs. It will serve as a national repository of stem cell rich umbilical cord blood.