Al-Dabhani, K
Tsilidis, K K
Murphy, N
Ward, H A
Elliott, P
Riboli, E
Gunter, M
Tzoulaki, I
Article History
Received: 10 October 2016
Revised: 26 January 2017
Accepted: 13 February 2017
First Online: 10 April 2017
Competing interests
: The authors declare no conflict of interest.