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cong gen yuan jie du ai zheng
Author(s): 
Pages: 6-9
Year: Issue:  2
Journal: Family & Child Care

Abstract: 你了解癌症吗? 1.癌症是目前全世界造成人口死亡的主要原因之一,已经成为严重危害人类生命健康、制约社会经济发展的一类疾病. 2.癌症是细胞不受控制的增长和扩散,肿瘤常常侵入肌体周围的正常组织更有可能转移到其它部位.癌症由一个单细胞变异造成,这种变异可由外部因子和遗传基因因素造成,而烟草使用是最易诱发癌症的危险因素之一.
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