Zhang, Yinxia
Shi, Fangfang
Yu, Zhanbiao
Yang, Aimin
Zeng, Maolan
Wang, Jiaoyue
Yin, Haiping
Zhang, Benzhong
Ma, Xiao http://orcid.org/0000-0003-1880-4632
Funding for this research was provided by:
Consejo de Desarrollo CientÃfico y HumanÃstico, Universidad Central de Venezuela (31920170044)
Article History
Received: 7 March 2019
Accepted: 22 July 2019
First Online: 4 September 2019
Ethics approval and consent to participate
: The study protocol was approved by the Medical Research Ethics Committee of the Northwestern Minzu University, and all participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.