Funding for this research was provided by:
Pearl River S&T Nova Program of Guangzhou (201610010169)
Scientific Research Projects of Guangzhou Municipal Education Bureau (1201620038)
Article History
Received: 26 January 2020
Accepted: 16 May 2020
First Online: 24 May 2020
Compliance with ethical standads
:
: The authors declare that they have no competing interest.
: This study was approved by the Ethics Review Board of the First Affiliated Hospital of Guangzhou Medical University.
: Informed consent was obtained from all individual participants enrolled in the study.