Ethics approval and consent to participate
The study was reviewed and approved by the Ethics Committee of People’s Hospital of Chongqing Banan District, Chongqing, China on 7th June 2021 and a favourable opinion was given on 10th August 2021 (No. 011-2021). The study was conducted according to the Declaration of Helsinki. Written informed consent was obtained from all participants prior to participation and they were all assured that they could withdraw their consent at any time without consequences.