Cui, Chao
Li, Zhiyu
Wu, Dequan
Funding for this research was provided by:
the National Health Planning Commission clinical construction project
Article History
Received: 30 January 2019
Accepted: 25 May 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.