Received: 21 February 2021
Accepted: 9 June 2021
First Online: 22 June 2021
: The present study was approved by the respective ethics committees of Ethical Commitee of Clínic Hospital (Barcelona) and comittee of Emergency Medical Services (Barcelona), with reference number HCB/2020/0158. Authorisation was obtained from the nursing and medical directorates of both institutions. The guidelines of the Declaration of Helsinki relating to ethical principles in clinical research were followed. The authors of the original questionnaire authorised its administration in the present study. With respect to the participants, they received oral and written information concerning the study and the voluntary nature of their participation. To ensure confidentiality, the information collected was registered in a database anonymously, using numbers (P1/G1, P2/G2, etc.) instead of the names of the participants.
: Not applicable.
: The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.