Document is current

Article History

Received: 23 February 2021

Accepted: 23 April 2021

First Online: 10 May 2021

Declarations

:

: The study protocol followed the Ethical Guidelines of the Declaration of Helsinki (as revised in 2013). All related procedures were performed with the approval of the Internal Review and the Ethics Boards of the First Affiliated Hospital, Sun Yat-sen University. Informed consent was obtained from all individual participants included in the study.

: Not applicable.

: There is no competing interest regarding the publication of this paper.