Funding for this research was provided by:
Spanish Society of Pediatric Rheumatology (Moving4 grant)
Received: 13 January 2020
Accepted: 3 July 2020
First Online: 14 July 2020
Ethics approval and consent to participate
: The current study was approved by the Institutional Review Board at Reina Sofia Hospital. Original data collection and consenting procedures were approved by the ethical committee of Reina Sofia Hospital.
: Written consent was obtained from all the participants in the study for publication.
: The authors declare that they have no competing interests.