The thymus and immunocompetence: the target cell of the thymic factor.
D000818:Animals; D000917:Antibody Formation; D007109:Immunity; D007153:Immunologic Deficiency Syndromes; D008214:Lymphocytes / Q000276:immunology*; D008264:Macrophages / Q000276:immunology*; D051379:Mice; D012756:Sheep; D013154:Spleen / Q000166:cytology / Q000276:immunology*; D013934:Thymectomy; D013950:Thymus Gland / Q000276:immunology*