Funding for this research was provided by:
Ministerio de Ciencia, Innovación y Universidades (PSI2017-86723-R)
Junta de Andalucía (P18-RT-2178)
Article History
Accepted: 28 June 2021
First Online: 9 July 2021
Change Date: 10 October 2021
Change Type: Update
Change Details: The original version of this paper was updated. The funding note "Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature" was inserted.
Declarations
:
: This study was performed in accordance with the ethical standards of the Declaration of Helsinki. Approval was granted by the Andalusian Biomedical Ethical Committee (Spain) (0568-N-14).
: Informed consent of the parents or legal guardians was obtained through the school council. In addition, before the survey administration, students were reminded that their participation was voluntary and confidential, and the anonymous character of their answers.
: The authors declare no competing interests.