Chow, Prudence P. C.
Yip, Wilson W. K.
Ho, Mary
Lok, Julie Y. C.
Lau, Henry H. W.
Young, Alvin L.
Article History
Received: 9 October 2017
Accepted: 16 March 2018
First Online: 16 June 2018
Compliance with ethical standards
:
: The authors declared 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.