Text and Data Mining valid from 2019-01-08
Received: 31 July 2018
Accepted: 26 December 2018
First Online: 8 January 2019
Ethics approval and consent to participate
: Considering the qualitative approach of our case series the Ethical Committee for North-western and Central Switzerland (EKNZ) granted an exemption from requiring ethics approval and consent to participate. Waiver issued on 17.06.2014 by Prof. André P. Perruchoud, former president of EKNZ.
: Not applicable.
: The authors declare that they have no competing interests.
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