Li, Chen
Qin, Yu
Ouyang, Ting
Yao, Maolin
Zhang, Aihua
Luo, Peng
Pan, Xueli
Funding for this research was provided by:
National Natural Science Foundation of China (81660524)
First-Class Discipline Construction Project in Guizhou Province -Public Health and Preventive Medicine (2017[85])
Article History
Received: 8 April 2020
Accepted: 8 June 2020
First Online: 22 June 2020
Compliance with Ethical Standards
: The study received approval from the Ethical Committee of Guizhou Medical University. All participants involved in this research signed informed consent forms.
: The authors declare that they have no conflict of interest.