Received: 19 December 2019
Accepted: 25 February 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: The study was approved by the Human Ethics Committee of Fondazione IRCCS Policlinico S. Matteo of Pavia (Protocol number: 20180022618; 6/12/2018) and will be conducted according to the Good Clinical Practice guidelines.
: The written informed consent of the parents/legal guardian will be provided. The Human Ethics Committee of Fondazione IRCCS Policlinico S. Matteo of Pavia approved this procedure.
: The authors declare that they have no competing interests.