Received: 26 February 2020
Accepted: 16 July 2020
First Online: 22 July 2020
Ethics approval and consent to participate
: This study was approved (IRB: B2018-314R) by the Ethics Committee of Zhongshan Hospital, Fudan University on Dec 4, 2018. All of the participants gave their written, informed consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.