Funding for this research was provided by:
Instituto de Salud Carlos III (PI16-00662, PI13/00492)
Consejería de Salud, Junta de Andalucía (PI0458/2013, PS0358/2016)
Text and Data Mining valid from 2020-02-19
Received: 7 November 2019
Accepted: 12 February 2020
First Online: 19 February 2020
Ethics approval and consent to participate
: The protocol of this study, which was conducted following the standards of the Declaration of Helsinki, was authorized by the Health Research Ethics Committee of Junta de Andalucía (Andalusian government). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.