Morell-Azanza, Lydia
Ojeda-Rodríguez, Ana
Ochotorena-Elicegui, Amaia
Martín-Calvo, Nerea
Chueca, María
Marti, Amelia
Azcona-San Julian, Cristina
Article History
Received: 18 December 2018
Accepted: 24 March 2019
First Online: 4 April 2019
Ethics approval and consent to participate
: The study protocol was performed in accordance with the ethical standards laid down in the 2013 Declaration of Helsinki (Fortaleza, Brasil, October 2013) and was approved by the Ethics Committee of the University of Navarra (Reference number 044/2014).Informed assent was obtained from every child and all parents and/or legal guardians signed an informed consent according to the Helsinki declaration.
: Not applicable.
: The authors declare that they have no competing interests.
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