Article History
Received: 31 December 2016
Accepted: 20 August 2017
First Online: 1 September 2017
Compliance with ethical standards
:
: R. Payne, J. Aldwinckle, and S. Ward declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Formal consent is not required for this type of study.