Text and Data Mining valid from 2020-02-06
Received: 24 June 2019
Accepted: 31 January 2020
First Online: 6 February 2020
Ethics approval and consent to participate
: All participants provided written informed consent. The study was conducted in accordance with the Declaration of Helsinki, and was approved by the local Research Ethics Committee (Ref. CIPI/100/17) at the Universidad Europea de Valencia (Valencia, Spain).
: All participants provided written consent for the publication of potentially identifying images.
: The authors declare that they have no competing interests.