Funding for this research was provided by:
Talent Training Program Foundation for the Excellent Youth Supported by Zhongshan Hospital (2015ZSYXQN12)
Received: 29 June 2020
Accepted: 21 September 2020
First Online: 1 October 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the institutional review board of Zhongshan Hospital Fudan University and was conducted in accordance with the Declaration of Helsinki. The informed consent form was waived.
: Not applicable.
: The authors declare that they have no competing interests.