LC and ML contributed equally.
LL, GZ and JW contributed equally.
Contributors: Study design: LL, GZ and JW. Data collection: LC, MC, ZH and NX. Analysis and interpretation of the data: ZZ, KQ, TH and ML. Writing of the report: LC. Revision of the draft: LC, ZZ and GZ. Making the decision to submit the paper for publication: LL, GZ, JW, LC, MC, ZH, NX, ZZ, KQ, TH and ML.
Funding: This study was supported by the National Natural Science Foundation of China (Grant No 81900877).
Competing interests: None declared.
Patient consent for publication: Obtained.
Ethics approval: Institutional review board approval was obtained from the Third People's Hospital of Shenzhen.
Provenance and peer review: Not commissioned; internally peer reviewed.
Data availability statement: Data are available on reasonable request.