Poon, Vitti W. K.
Shu, Dorothy S. T.
Chan, Raymond W. S.
Leung, Cecilia N. W.
Leung, Patrick W. L.
Article History
First Online: 1 November 2019
Compliance with Ethical Standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed were in compliance with the Ethical Standards of the Institutional and/or National Research Committees and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed written consent was obtained from all individual participants involved in this study.