Hand TransplantationFacial TransplantationTissue TransplantationTransplantation, HomologousComposite Tissue AllograftsVascularized Composite AllotransplantationTransplantation ToleranceSurgical FlapsSkin TransplantationGraft RejectionRats, Inbred WFRectus AbdominisGraft SurvivalOrgan TransplantationComposite Resins