Received: 27 May 2019
Accepted: 5 August 2019
First Online: 28 August 2019
Ethics approval and consent to participate
: The authors declare that all the participants of the research consented online to the use of their information in the moment of the interview, complying with ethical and legal norms. In addition, data related to literature review do not require prior consent, since they are secondary data, already published in different online databases.
: Not applicable
: The authors declare that they have no competing interests.