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Li, Z., Bian, Y., Zeng, L., Li, W., & Yang, L. (2017). Life Expectancy, Causes of Death, Risk Factors in China and the U.S. . Annals of Global Health , 83 ( 3-4 ) , 407–414 . DOI: http://doi.org/10.1016/j.aogh.2017.10.003

Li, Zhengjun, Yaoyao Bian, Li Zeng, Wenlin Li, and Lili Yang. 2017. Life Expectancy, Causes of Death, Risk Factors in China and the U.S. 83 , no. 3-4 : 407–414 . DOI: http://doi.org/10.1016/j.aogh.2017.10.003