Zhang Hua, Huo Mingdong, Chao Jianqian, Liu Pei
Dept. of Medical Insurance, School of Public Health, Southeast University, Nanjing, Jiangsu, China.
Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China.
Iran J Public Health. 2016 Dec;45(12):1660-1661.