Article History
Received: 26 August 2019
Accepted: 17 November 2019
First Online: 7 December 2019
Compliance with ethical standards
:
: The authors declare no conflicts of interest as stated by the authors ICMJE forms for disclosure of potential conflicts of interest.
: According to local MRC regulations this study does not require ethical approval.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The patient in the photographs has provided written consent for publication of the images.