Thompson, Graeme
Van Den Heever, Andrew
Article History
Received: 7 October 2018
Revised: 6 January 2019
Accepted: 6 February 2019
First Online: 11 March 2019
Compliance with ethical standards
: Consent was obtained from the patient to publish this article.
: The authors declare that there are no actual or potential conflicts of interest in relation to this article.