Received: 31 December 2019
Revised: 22 June 2020
Accepted: 6 August 2020
First Online: 16 September 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the ethics committee of Nanfang Hospital, Southern Medical University. Informed consent was obtained from all participants (reference number: NFEC-201706-K3-01). The study was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: All data generated or analysed during this study are included in this paper.
: The authors declare no competing interests.
: This research was supported by the National Key Research and Development Program of China (grant numbers “2019YFC0117301” and “2019YFC0121903”), Natural Science Foundation of Guangdong Province (grant number “2019A1515011168”) and Medical Research Fund of Guangdong Province (grant number “A2017496”).