Funding for this research was provided by:
non-profit organization “IO CI SONO” (2009-1545)
Istituto Ortopedico Rizzoli di Bologna
Received: 15 March 2020
Accepted: 8 June 2020
First Online: 3 July 2020
Ethics approval and consent to participate
: Ethics approval was sought and obtained from the IOR Ethical Committee (PG nr. 01–13 12/19/2017). The study was conducted in accordance with the Helsinki declaration and all patients gave informed consent in writing to participate. Parents provided written consent for the inclusion of the patients in this study, since all the patients were minors (age less than 18) at the time of participation in the study.
: Not applicable.
: The authors declare no conflicts of interest related to any aspects of the presented manuscript.