title: Anaplasia and resistance to tumors.
mesh_terms: D000367:Age Factors; D000708:Anaplasia / Q000276:immunology*; D004622:Embryo, Mammalian / Q000276:immunology*; D005260:Female; D006801:Humans; D007114:Immunization; D009369:Neoplasms / Q000209:etiology / Q000276:immunology; D010298:Parity; D011247:Pregnancy