Kong, Fan-Biao http://orcid.org/0000-0002-5677-860X
Dong, Chen-Cheng
Deng, Qiao-Ming
Wang, Xiao-Tong
Deng, Hong-Qiang
Article History
Received: 18 August 2018
Accepted: 22 October 2018
First Online: 29 October 2018
Compliance with Ethical Standards
: This work was supported by grants from the Scientific Research Project of Guangxi Health and Family Planning Commission (No. Z20180739) and the National Natural Science Foundation of China (No. 81660416).
: The authors declare that they have no competing interests.