title: Effect of anti-hapten serum on hapten-treated rat tumor.
mesh_terms: D000818:Animals; D006241:Haptens / Q000097:blood / Q000276:immunology*; D007167:Immunotherapy; D008558:Melphalan / Q000276:immunology; D009374:Neoplasms, Experimental / Q000628:therapy*; D051381:Rats; D011917:Rats, Inbred Lew
chemical_list: D006241:Haptens; D008558:Melphalan