Lai, Clare T. M.
Wong, Sophia J.
Ip, Janice J. K.
Wong, Wai-keung
Tsang, Kwong-cheong
Lam, Wendy W. M.
Cheung, Yiu-fai
Article History
Received: 8 March 2015
Accepted: 17 August 2015
First Online: 11 September 2015
Competing interests
: The authors declare no competing financial interests.