Allott, E H
Macias, E
Sanders, S
Knudsen, B S
Thomas, G V
Hursting, S D
Freedland, S J
Article History
Received: 23 May 2016
Revised: 29 November 2016
Accepted: 12 December 2016
First Online: 28 February 2017
Competing interests
: The authors declare no conflict of interest.