Barrio, Josefa https://orcid.org/0000-0002-6103-2191
Cilleruelo, María Luz
Román, Enriqueta
Fernández, Cristina
Funding for this research was provided by:
Spanish National Institutes of Health Fondo de Investigación Sanitaria (PI 22/01183)
Article History
Received: 11 March 2018
Revised: 27 June 2018
Accepted: 1 July 2018
First Online: 16 July 2018
Compliance with ethical standards
: All procedures performed in the study involving human participants were in accordance with the ethical standards of the institutional and national research committees and with the 1964 Helsinki declaration and its later amendments.
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from the parents of all the children included in the study.