Text and Data Mining valid from 2019-01-17
Received: 8 August 2018
Accepted: 22 October 2018
First Online: 17 January 2019
Compliance with ethical standards
: Fabian Perez Rivera declares that he has no conflict of interest.
: For this retrospective study formal consent from a local ethics committee is not required.
: All patients sign two different consents in which they accept to share their photos and information of the treatment for scientific purposes.