Liao, Xiaoyan
Liu, Xiuli
Fan, Xuemo
Lai, Jinping
Zhang, Dongwei
Article History
Received: 21 January 2020
Accepted: 19 March 2020
First Online: 24 March 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of each participating institution.
: Not applicable.
: The authors declare that they have no competing interests.