Yan, Chao
Su, Li
Wang, Yi
Xu, Ting
Yin, Da-zhi
Fan, Ming-xia
Deng, Ci-ping
Hu, Yang
Wang, Zhao-xin
Cheung, Eric F. C.
Lim, Kelvin O.
Chan, Raymond C. K.
Article History
Received: 2 October 2015
Accepted: 10 June 2016
First Online: 5 July 2016
Competing interests
: The authors declare no competing financial interests.