1. Department of Clinical and Experimental Medicine, Section of Pediatrics and Child Neuropsychiatry, University of Catania, Catania, CT, Italy
2. University-Hospital “Policlinico-Vittorio Emanuele,” University of Catania, Catania, CT, Italy
3. Rare Disease and Medical Genetics, Academic Department of Pediatrics, Bambino Gesù Children's Hospital, Rome, Italy
4. Child Neurology, Chair of Pediatrics, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University, c/o Sant’ Andrea Hospital, Rome, Italy
5. Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea