title: Suppressor T cells in chickens bearing chemically induced tumors.
mesh_terms: D015127:9,10-Dimethyl-1,2-benzanthracene; D000818:Animals; D002645:Chickens / Q000276:immunology*; D002927:Cimetidine / Q000494:pharmacology; D007108:Immune Tolerance / Q000187:drug effects; D007116:Immunization, Passive; D011899:Ranitidine / Q000494:pharmacology; D011970:Receptors, Histamine H2 / Q000032:analysis; D012513:Sarcoma, Experimental / Q000139:chemically induced / Q000276:immunology*; D013154:Spleen / Q000166:cytology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
chemical_list: D011970:Receptors, Histamine H2; D015127:9,10-Dimethyl-1,2-benzanthracene; D002927:Cimetidine; D011899:Ranitidine