Funding for this research was provided by:
Received: 8 October 2020
Accepted: 11 January 2021
First Online: 20 January 2021
Ethics approval and consent to participate
: This article does not contain any studies animals performed by any of the authors. The study was approved by the Sant Joan de Déu Ethical Committee (PIC-60-20) and followed the recommendations of Helsinki Declaration. All adult subjects signed the informed consent form, and children’s participation required mandatory parental informed consent.
: Not applicable.
: The authors declare that they have no conflict of interest.