Ning, Y
Zhang, W
Hanna, D L
Yang, D
Okazaki, S
Berger, M D
Miyamoto, Y
Suenaga, M
Schirripa, M
El-Khoueiry, A
Lenz, H-J
Article History
Received: 3 February 2016
Revised: 3 May 2016
Accepted: 15 June 2016
First Online: 9 August 2016
Competing interests
: The authors declare no conflict of interest.