Tang, Yanbo
Tang, Guodu
Pan, Liying
Zhu, Hua
Zhou, Shanmei
Wei, Zhaoyong
Funding for this research was provided by:
self-raised project of Guangxi Zhuang Region Health Department (Z2014446)
Article History
Received: 12 March 2020
Accepted: 27 August 2020
First Online: 21 September 2020
Competing interests
: The authors declare no competing interests.