Lv, Zhenyang
Lei, Ting
Funding for this research was provided by:
The Second Affiliated Hospital of Dalian Medical University internal funds.
Article History
Received: 17 July 2019
Accepted: 15 December 2019
First Online: 27 January 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.