Funding for this research was provided by:
Fujian Medical University Professor Funding (JS14014)
Received: 25 August 2019
Accepted: 29 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the Human Ethics Committee of Fujian Medical University (ethics approval number: 2015–56). Informed written consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors have no conflict of interests to disclose.