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Authors
Lau, Way K. W.
Leung, Mei-Kei
Chan, Chetwyn C. H.
Wong, Samuel S. Y.
Lee, Tatia M. C.
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Article History
Received: 2 February 2015
Accepted: 16 October 2015
First Online: 18 November 2015
Competing interests
: The authors declare no competing financial interests.
