title: Thymus-derived cells in the early phase of delayed tuberculin reactions.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D005455:Fluorescent Antibody Technique; D006168:Guinea Pigs; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D008198:Lymph Nodes / Q000166:cytology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology; D008221:Lymphoid Tissue / Q000276:immunology; D008938:Mitosis; D011830:Radiation Effects; D012882:Skin Tests; D013154:Spleen / Q000166:cytology; D013934:Thymectomy; D013950:Thymus Gland / Q000276:immunology*; D014374:Tuberculin Test