1. School of Economics and Management, Yanshan University, Qinhuangdao, Hebei, China
2. LiRen College, Yanshan University, Qinhuangdao, Hebei, China
3. The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
4. Qinhuangdao Port Public Security Bureau Qinhuangdao, Hebei, China