Blood BanksBlood DonorsFetal BloodSpinal CordBlood Transfusion, AutologousSpinal Cord InjuriesOocyte DonationBlood SafetyDonor SelectionBlood TransfusionAltruismUmbilical CordTissue and Organ ProcurementObstetric Surgical ProceduresDirected Tissue DonationTissue DonorsInfant, NewbornAntigens, CD34PlateletpheresisPregnancySpinal Cord DiseasesErythrocyte CountHematopoietic Stem CellsPhlebotomySpinal Cord CompressionBrain DeathCompensation and RedressSpermatic CordBlood-Borne PathogensBlood Loss, SurgicalPreoperative CareMaternal-Fetal ExchangeSpinal Cord NeoplasmsMotivationLiving DonorsSpinal Cord IschemiaIronFerritinsCord Blood Stem Cell TransplantationDeathGift GivingTime FactorsNew EnglandProspective StudiesHematopoietic Stem Cell TransplantationItalyHemoglobinsPresumed ConsentWest Nile Fever