title: National Marrow Donor Program: progress and challenges.
authors.affiliation: M.D. Anderson Cancer Center, Houston, TX.
authors.forename: R
authors.initials: R
authors.lastname: Champlin
authors.forename: P
authors.initials: P
authors.lastname: Coppo
authors.forename: C
authors.initials: C
authors.lastname: Howe
mesh_terms: D016026:Bone Marrow Transplantation; D006801:Humans; D009313:National Health Programs; D014019:Tissue Donors; D014481:United States