Li-Tsang, Cecilia W. P.
Li, Tim M. H.
Ho, Choco H. Y.
Lau, Mandy S. W.
Leung, Howard W. H.
Article History
First Online: 19 April 2018
Compliance with Ethical Standards
:
: All authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: This article does not contain any studies with animals performed by any of the authors.