Liu, Xueqing
Feng, Feng
Qin, Jianzhang
Xing, Zhongqiang
Duan, Jiayue
Wang, Wenbin
Liu, Jianhua
Article History
Received: 19 April 2018
Accepted: 2 April 2019
First Online: 17 April 2019
Compliance with Ethical Standards
: This research has been approved by the Ethics Committee of Second Hospital of Hebei Medical University.