Funding for this research was provided by:
Instituto de Salud Carlos III (Pi12/01357)
Centro de Investigación Biomédica en Red (N/A)
European Regional Development Funds (N/A)
Marie-Curie FP7-People (2011-CIG)
Received: 25 September 2020
Accepted: 1 March 2021
First Online: 10 March 2021
: All parents signed the informed consent document. The study was approved by the Hospital’s Ethic Committee (PIC-21-12).
: Not applicable.
: The authors declare that they have no competing interests.