Text and Data Mining valid from 2019-11-19
Received: 29 June 2019
Revised: 6 September 2019
Accepted: 24 September 2019
First Online: 19 November 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
: This work was approved by the ethical committee of the Consejería de Salud de la Junta de Andalucía, code AWGAPN-2019-01.