Funding for this research was provided by:
Hong Kong RGC Area of Excellence Scheme (AoE/M-06/08)
World Cancer Research Fund UK (WCRF UK) and Wereld Kanker Onderzoek Fonds (WCRF NL), as part of the WCRF International Grant Programme (2011/460)
Received: 2 November 2020
Accepted: 18 January 2021
First Online: 2 February 2021
Ethics approval and consent to participate
: Informed consent was obtained from all individual subjects included in the study.The Institutional Review Board of the HKU/Hospital Authority HK West Cluster (UW 11–192), the HK East Cluster Research Ethics Committee (HKEC-2012-043), the Research Ethics Committee of the Hospital Authority Kowloon Central/Kowloon East (KC/KE-13-0115/ER-2), the Research Ethics Committee of the Kowloon West Cluster [KW/EX-13-073(63–11)], and the NTW Cluster Clinical & Research Ethics Committee (NTWC/CREC/1239–13) approved the study.
: Not applicable.
: The authors declare no conflict of actual or potential competing financial interests.