Wu, Hongzeng
Zhang, Jinming
Dai, Ruoheng
Xu, Jianfa
Feng, Helin
Article History
Received: 19 March 2019
Accepted: 30 July 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: Ethics Committees of the Fourth Hospital of Hebei Medical University approved this study and all patients signed written informed consent.
: Yes
: All authors declare no conflicts of interest.