Wu, Jiang-Lai
Xu, Yi-Qing
Xu, Jing-Jiang
Wei, Xiao-Ming
Chan, Antony CS
Tang, Anson HL
Lau, Andy KS
Chung, Bob MF
Cheung Shum, Ho
Lam, Edmund Y
Wong, Kenneth KY
Tsia, Kevin K
Article History
Received: 12 April 2016
Revised: 4 August 2016
Accepted: 11 August 2016
First Online: 12 August 2016
Competing interests
: The authors declare no conflict of interest.