Niu, N
Zhang, J
Zhang, N
Mercado-Uribe, I
Tao, F
Han, Z
Pathak, S
Multani, A S
Kuang, J
Yao, J
Bast, R C
Sood, A K
Hung, M-C
Liu, J
Article History
Received: 18 July 2016
Revised: 19 October 2016
Accepted: 23 October 2016
First Online: 19 December 2016
Competing interests
: The authors declare no conflict of interest.