Twins, MonozygoticDiseases in TwinsTwinsTransplantation ImmunologyAllergy and ImmunologyBiometric IdentificationTwins, DizygoticDermatoglyphicsTwin Studies as TopicEunuchismLiver TransplantationTwins, ConjoinedBone Marrow TransplantationTransplantation, HomologousTransplantation, IsogeneicKidney TransplantationCombat DisordersPregnancyHematopoietic Stem Cell TransplantationHeart TransplantationTransplantation, AutologousDiabetes Mellitus, Type 1Lung TransplantationOrgan TransplantationStem Cell TransplantationTransplantation ConditioningGraft SurvivalGraft RejectionPancreas TransplantationPregnancy, TwinIslets of Langerhans TransplantationTissue DonorsTransplantationPedigreeCell TransplantationTransplantation ChimeraImmunosuppressive AgentsGraft vs Host DiseaseTreatment OutcomeLiving DonorsTransplantation ToleranceTransplantation, HeterotopicCord Blood Stem Cell TransplantationHeart-Lung TransplantationImmunosuppressionRetrospective StudiesTissue and Organ ProcurementTime FactorsPeripheral Blood Stem Cell TransplantationSkin TransplantationHistocompatibility TestingLiver FailureFetal Tissue TransplantationRecurrencePostoperative ComplicationsWaiting ListsTransplantation, HeterologousImmune SystemImmunotherapyMesenchymal Stem Cell TransplantationCorneal TransplantationHistocompatibilityPregnancy, MultipleHematologic NeoplasmsT-LymphocytesTacrolimusHLA AntigensTissue TransplantationFollow-Up Studies