Gao, Ying
Wang, Guiyun
Li, Yang
Lv, Chenxiao
Wang, Zunsong
Article History
Received: 7 May 2018
Accepted: 19 November 2018
First Online: 26 December 2018
Compliance with ethical standards
:
: There is no potential conflict of interest between authors.
: This article is the result of our independent research work. Except for the contents quoted in the article, this paper does not contain the results of any other people or collectively published works.
: This research involve human participants, they have signed the informed consent.