Ng, Patrick Kwok Shing
Lau, Carol Po Ying
Lam, Emily Kai Yee
Li, Sheila Sai Kam
Lui, Vivian Wai Yan
Yeo, Winnie
Ng, Yuen Keng
Lai, Paul Bo San
Tsui, Stephen Kwok Wing
Funding for this research was provided by:
Health and Medical Research Fund (Ref. No.: 14130312)
Article History
Received: 10 September 2017
Accepted: 11 January 2018
First Online: 20 January 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.