Wang, Xue
Zhong, Jialing
Chen, Fang
Hu, Kang
Sun, Suhong
Leng, Yuanxiu
Chen, Xumei
Gan, Fengjiao
Pan, Yana
Luo, Qing https://orcid.org/0000-0001-7640-347X
Funding for this research was provided by:
National Natural Science Foundation of China (81860469)
Scientific research project of Sichuan provincial health and Family Planning Commission (18PJ115)
Article History
Received: 12 April 2019
Accepted: 2 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.