Ventzke, M.-M.
Kemming, G. I.
Article History
Received: 9 November 2018
Revised: 6 February 2019
Accepted: 9 February 2019
First Online: 1 April 2019
Compliance with ethical guidelines
:
: M.-M. Ventzke and G.I. Kemming declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors. For images or other information within the manuscript which could identify the patient, consent was obtained from the patient or the legal guardian.