Text and Data Mining valid from 2019-02-04
Received: 29 August 2018
Accepted: 19 December 2018
First Online: 4 February 2019
Ethics approval and consent to participate
: As a routine procedure, a signed informed consent for releasing diagnostic records for scientific purposes was obtained from the parents of the patients prior to entry into the treatment. The protocol was reviewed and approved by the Ethical Committee of the University of Insubria (Varese, Italy) (approval no. 725) and procedures followed adhered to the World Medical Organization Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.