Wei, Q
Chen, Z-H
Wang, L
Zhang, T
Duan, L
Behrens, C
Wistuba, I I
Minna, J D
Gao, B
Luo, J-H
Liu, Z P
Article History
Received: 21 March 2015
Revised: 24 July 2015
Accepted: 28 July 2015
First Online: 14 September 2015
Competing interests
: The authors declare no conflict of interest.