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Article History

Received: 8 December 2017

Accepted: 25 February 2019

First Online: 4 March 2019

Ethics approval and consent to participate

: Written information was given and verbal consent obtained from participants (because the questionnaire was anonym). Jaen Research Ethics Committee approved the study and the procedure for obtaining consent. The anonymity and confidentiality of the data were guaranteed in accordance with the Spanish Law of Data Protection.

: Not applicable.

: The authors declare they have no competing interest.

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