Wokes, James
Allison, K.
Collis, N.
Article History
Received: 19 June 2017
Accepted: 29 September 2017
First Online: 14 October 2017
Compliance with ethical standards
:
: We received no source of funding.
: James Wokes, K. Allison, N. Collis declare that they have no conflict of interest.
: No formal ethical approval was sought but the World Medical Association's Declaration of Helsinki principles were followed.
: Written informed consent was given by each participant for participation in the study and a written leaflet was provided with information as to the purpose of the study.