Received: 19 April 2020
Accepted: 14 October 2020
First Online: 21 October 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the amended Declaration of Helsinki. Before data collection, the Research Ethics Committee of the Fujian Medical University Union Hospital approved this study and waived the requirement for informed consent. (2019YF002–04).
: Not applicable.
: The authors report no conflicts of interest in this work.