title: Ontogeny of the immune response to skin allografts in relation to lymphoid organ development in the amphibian Xenopus laevis Daudin.
mesh_terms: D000818:Animals; D001001:Anura; D006801:Humans; D007108:Immune Tolerance; D008214:Lymphocytes; D008221:Lymphoid Tissue / Q000254:growth & development / Q000502:physiology*; D008722:Methods; D016038:Skin Transplantation; D013950:Thymus Gland / Q000196:embryology; D014184:Transplantation, Homologous