Li, Xin-Yu
Sun, Xin
Chen, Jing
Qin, Mao-Quan
Luan, Zuo
Zhu, Yi-Ping
Fang, Jian-Pei
Article History
Received: 18 July 2016
Accepted: 9 December 2016
First Online: 6 March 2018
Compliance with ethical standards
:
: The study protocol was approved by local ethics committee of Sun Yat-Sen University.
: The authors report no conflicts of interests and have no relevant disclosures.