Volz, N B
Stintzing, S
Zhang, W
Yang, D
Ning, Y
Wakatsuki, T
El-Khoueiry, R E
Li, J E
Kardosh, A
Loupakis, F
Cremolini, C
Falcone, A
Scherer, S J
Lenz, H-J
Article History
Received: 11 February 2014
Revised: 13 May 2014
Accepted: 4 June 2014
First Online: 29 July 2014
Competing interests
: The authors declare no conflict of interest.