Xie, Zhenzhen
Liu, Kaifeng
Or, Calvin https://orcid.org/0000-0002-9819-8865
Chen, Jiayin
Yan, Mian
Wang, Hailiang
Funding for this research was provided by:
Health and Medical Research Fund (12133231)
Article History
Received: 16 July 2019
Accepted: 19 July 2020
First Online: 12 August 2020
Ethics approval and consent to participate
: This study was approved by the Hong Kong East Cluster Research Ethics Committee (reference HKEC-2015-058). Written informed consent was obtained from all of the participants prior to data collection.
: Not applicable.
: The authors declare that they have no competing interests.