Feng, Shipin http://orcid.org/0000-0002-9836-398X
Xie, Min
Luo, Wei
Wang, Li
Guo, Limin
Wu, Ying
Liu, Jun
Duan, Qinwei
Yang, Qin
Li, Jia
Liu, Xi
Zhu, Rong
Article History
Received: 25 February 2020
Accepted: 13 April 2020
First Online: 28 April 2020
Compliance with Ethical Standards
:
: None.
: 1. Chengdu Municipa Health Commission 2018052; 2. Health Commission of Sichuan Provience 12051.