1. Academic Department of Pediatrics, Bambino Gesù Children’s Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), 00165 Rome, Italy
2. Headache Center, Developmental Neurology Unit, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy
3. Medicine Department, Hospital of Rome, Tor Vergata University, 00133 Rome, Italy
4. Center for Sensory Motor Interaction, Aalborg University, DK-9220 Aalborg, Denmark