title: Studies on the source and action of the T-cell replacing factor (TRF).
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002478:Cells, Cultured; D002645:Chickens / Q000276:immunology; D004912:Erythrocytes / Q000276:immunology; D006736:Horses / Q000276:immunology; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D008198:Lymph Nodes / Q000166:cytology; D008212:Lymphocyte Depletion; D051379:Mice; D012756:Sheep / Q000276:immunology; D012995:Solubility; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007074:Immunoglobulin G; D007075:Immunoglobulin M