Skin TransplantationTransplantation, HomologousGraft RejectionGraft SurvivalLiver TransplantationMice, Inbred BALB CMice, Inbred C57BLKidney TransplantationBone Marrow TransplantationSkinHematopoietic Stem Cell TransplantationHeart TransplantationTransplantation, AutologousLung TransplantationStem Cell TransplantationTransplantation ConditioningOrgan TransplantationImmune SystemPancreas TransplantationIslets of Langerhans TransplantationTransplantation ImmunologyTissue DonorsTransplantationCell TransplantationSkin DiseasesTransplantation ChimeraSkin NeoplasmsSkin AgingImmunosuppressive AgentsGraft vs Host DiseaseTransplantation, IsogeneicTreatment OutcomeTransplantation, HeterotopicLiving DonorsCord Blood Stem Cell TransplantationTime FactorsHeart-Lung TransplantationImmune ToleranceImmunosuppression