Bower, Hilary
Glynn, Judith R.
Article History
Received: 26 May 2016
Accepted: 15 December 2016
First Online: 31 January 2017
Competing interests
: H.B. and J.R.G. declare they have no competing financial interests nor conflicts of interest. Both authors have had had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.