An available matched sibling donor or a confirmed matched unrelated donor

Patients with DiGeorge syndrome, Zap70, MHC Class II deficiency, or cartilage-hair hypoplasia

Patients with a Lansky performance score of less than 10, evidence of HIV or a congenital rubella infection or a documented neoplasm

Patients in whom it is not possible to perform a peripheral blood cell harvest on a haploidentical family member

Transplantation of Hematopoietic Cells in Children With Severe Combined Immunodeficiency Syndrome