Zhou, Chaomin http://orcid.org/0000-0002-0817-4078
Zhan, Lin
Yuan, Jing
Tong, Xiaoya
Peng, Yanzhe
Zha, Yan
Article History
Received: 11 February 2019
Accepted: 15 March 2019
First Online: 9 April 2019
Compliance with ethical standards
:
: We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.
: Ethics Committee of The People’ s Hospital of Guizhou province approved the study. This study was performed fulfilling the principles of Helsinki Declaration.
: Informed consent was obtained from all participants included in the study.