Feng, Jigao
Ouyang, Yibin
Xu, Dedong
He, Qinglong
Liu, Dayuan
Fan, Xudong
Xu, Pengxiang
Mo, Yehe
Article History
Received: 21 December 2019
Accepted: 15 September 2020
First Online: 9 October 2020
Ethics approval and consent to participate
: Our research was approved by the Ethics Committee of the Second Affiliated Hospital of Hainan Medical University and was in the Declaration of Helsinki. Written informed consent was obtained from each participant.
: Not applicable.
: The authors declare that they have no conflict of interest.