title: [Various problems in cancer research].
mesh_terms: D000818:Animals; D006224:Cricetinae; D049673:History, 20th Century; D051379:Mice; D009374:Neoplasms, Experimental / Q000209:etiology / Q000266:history* / Q000276:immunology; D009858:Oncogenic Viruses; D011817:Rabbits; D012106:Research / Q000266:history