Received: 17 April 2021
Accepted: 15 September 2021
First Online: 18 September 2021
: This study was carried out following the international ethical recommendations for medical research in humans. Both authors were sure that this study was conducted in accordance with the standards set out in the Declaration of Helsinki. Before starting the study, the Ethical Committee of the first affiliated hospital of Chongqing Medical University approved the study protocol. All participants provide written informed consent before enrollment.
: Not applicable.
: There is no conflict of interest to declare in this study.