Received: 4 November 2019
Accepted: 16 January 2020
First Online: 20 January 2020
Ethics approval and consent to participate
: The Ethics Committee “Comitè d’Ètica de Recerca (CER) from the Universitat Internacional de Catalunya (UIC Barcelona)” approved the study with CBAS201907 reference number.
: Not applicable.
: The authors declare that they have no competing interests.