Funding for this research was provided by:
Research Grants Council of the Hong Kong Special Administrative Region, China (CUHK4460/03M)
Received: 8 October 2021
Accepted: 6 May 2022
First Online: 28 May 2022
: This study was approved by the ethics committees of both the Chinese University of Hong Kong and the Queen Elizabeth Hospital of the Hong Kong Hospital Authority (KC/KE 04–0014/ER-1). Written informed consents were obtained from all participants and/or their legal guardians of this study before starting interview. All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors have declared no conflicts of interest.