Wu, Q
Li, J V
Seyfried, F
le Roux, C W
Ashrafian, H
Athanasiou, T
Fenske, W
Darzi, A
Nicholson, J K
Holmes, E
Gooderham, N J
Article History
Received: 6 January 2015
Accepted: 22 February 2015
First Online: 18 March 2015
Competing interests
: The authors declare no conflict of interest.