Liu, Xinliang
Zhang, Qingbi
Raffenaud, Amanda
Ge, Li
Xiong, Wei
Liu, Yan
Funding for this research was provided by:
Primary Health Development Research Center of Sichuan Province (SWFZ15-Z-02)
Article History
Received: 23 April 2018
Accepted: 18 December 2018
First Online: 31 January 2019
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the Declaration of Helsinki Ethical Principles for medical research involving human subjects.
: Written informed consent was obtained from each participant before data collection in the study.