icsincancer肿瘤世界癌症现状全球(2010年)809万人死亡1303万新发病例5肝癌1肺癌7食道癌3结肠癌2乳腺癌4胃癌6宫颈癌CancerCancer6宫颈癌5结肠癌8鼻咽癌1肺癌2肝癌7乳腺癌3胃癌4食道癌268万新发病例中国癌症现状197万人死亡中国(2010)Whatcausescancer?Carcinogenesis.?Somefactorstoconsider…HeredityImmunityChemicalPhysicalViralBacterialLifestyleHeredityGenesisolatedforseveralclassicfamilialcancersyndromes:RB1(retinoblastoma)APC(familialpolyposis)HumanNonPolyposisColonCancer()BRCA1&2(breastcancer)p53(manycancers)
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