Funding for this research was provided by:
Universidad CEU Cardenal Herrera (IDOC15/16, FARMAFIR 2015, INDI 19/50)
Received: 18 October 2019
Accepted: 30 January 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of CEU Cardenal Herrera University (authorization number CEI15/003). All student volunteers were asked for and gave their signed informed consent for participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.