Ethics approval and consent to participate
WEST, RECRUITMENT
The study was approved by the Institutional Review Board of The University of Hong Kong/Hospital Authority Hong Kong West Cluster (UW 18–176), and registered at clinicaltrial.gov prior to patient recruitment on 24/07/2018 (NCT03597997). All methods were carried out in accordance with relevant guidelines and regulations. Written informed consent was obtained from all patients participating in the trial.