Schabath, M B
Welsh, E A
Fulp, W J
Chen, L
Teer, J K
Thompson, Z J
Engel, B E
Xie, M
Berglund, A E
Creelan, B C
Antonia, S J
Gray, J E
Eschrich, S A
Chen, D-T
Cress, W D
Haura, E B
Beg, A A
Article History
Received: 14 October 2014
Revised: 26 July 2015
Accepted: 3 August 2015
First Online: 19 October 2015
Competing interests
: The authors declare no conflict of interest.