title: The thymus during the ontogeny of the toad Xenopus laevis: growth, membrane-bound immunoglobulins and mixed lymphocyte reaction.
mesh_terms: D000818:Animals; D002452:Cell Count; D005455:Fluorescent Antibody Technique; D007136:Immunoglobulins / Q000378:metabolism*; D007814:Larva; D007959:Lymphocyte Culture Test, Mixed; D008214:Lymphocytes / Q000378:metabolism*; D008675:Metamorphosis, Biological; D013154:Spleen / Q000166:cytology; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000166:cytology / Q000196:embryology / Q000276:immunology*; D014316:Tritium; D014981:Xenopus / Q000254:growth & development*
chemical_list: D007136:Immunoglobulins; D014316:Tritium; D013936:Thymidine