Department of Movement Sciences and Wellbeing, University of Naples Parthenope, via Medina 40, 80133, Naples, Italy. giuliana.valerio@uniparthenope.it. Pediatric Diabetes and Metabolic Disorders Unit, University of Verona, Verona, Italy. Department of Pediatrics, University Hospital of Pisa, Pisa, Italy. Italian Society of Pediatrics (SIP), Rome, Italy. Department of Medical and Surgical Sciences, University Hospital S.Orsola-Malpighi, Bologna, Italy. Department of Health Sciences, University of Piemonte Orientale, Novara, Italy. Local health unit, Ferrara, Italy. Italian Society for Pediatric Endocrinology and Diabetology (SIEDP), Parma, Italy. Pediatrics Unit, University of Pavia and Fondazione IRCCS Policlinico San Matteo, Pavia, Italy. Local health unit Roma 2, Rome, Italy. Italian Society for Obesity (SIO), Francavilla Fontana (Brindisi), Italy. Chair of Pediatrics, University of Chieti, Chieti, Italy. Pediatric Unit, Hospital of Gallipoli, Gallipoli (Lecce), Italy. Autoimmune Endocrine Diseases Unit, Bambino Gesù Children Hospital, IRCCS, Rome, Italy. Department of Internal Medicine, "S. Maria delle Grazie", Pozzuoli Hospital, Naples, Italy. Department of Pediatrics, ARNAS "Civico-Di Cristina-Benfratelli", Palermo, Italy. Pediatric and Neonatal Unit, "G. Mazzini"Hospital, Teramo, Italy. Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy. Artificial Nutrition Unit Bambino Gesù, Children's Hospital, IRCCS, Rome, Italy. Italian Federation of Pediatricians (FIMP), Venice, Italy. Endocrinology and Diabetology Unit Bambino Gesù Children Hospital, IRCCS, Rome, Italy. Pediatric Unit, S. Chiara Hospital, Trento, Italy. Department of Translational Medical Science, Regional Center for Pediatric Diabetes, University Federico II of Naples, Naples, Italy. Azienda Tutela della Salute (ATS), Milan, Italy. Division of Auxology, Istituto Auxologico Italiano, IRCCS, Verbania, Italy. Pediatric Unit, University of Modena and Reggio Emilia, Modena, Italy. Italian Federation of Pediatricians (FIMP), Teramo, Italy. Department of Neurosurgery and Rehabilitation, AORN Santobono Pausilipon, Naples, Italy. Local health unit Napoli 3 sud, Torre del Greco (Naples), Italy. Research Area for Multifactorial Diseases, Children's Hospital Bambino Gesù, Rome, Italy. Istituto Ortopedico Rizzoli, Bologna, Italy. Pediatric Unit, "Infermi" Hospital, Rimini, Italy. Pediatric Diabetes and Metabolic Disorders Unit, University Hospital of Verona, Verona, Italy. Nutrition Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy. Local health unit (AULSS) 6 Euganea, Padova, Italy. Department of Pediatrics and Infantile Neuropsychiatry, Sapienza University of Rome, Rome, Italy. Hepatometabolic Unit, Bambino Gesù Children's Hospital, IRCSS, Rome, Italy. Pediatric Unit, Verona University Medical School, Verona, Italy. Italian Federation of Pediatricians (FIMP), Catania, Italy. Pediatric obesity Unit, ASP of Ragusa, Ragusa, Italy. Oasi Research Institute -IRCCS, Troina (Ragusa), Italy. Department of Obstetrics, Gynaecology and Paediatrics, Arcispedale S.Maria Nuova-IRCCS, Reggio Emilia, Italy. Italian Society for Pediatric Endocrinology and Diabetology (SIEDP), Ferrara, Italy. Pediatric Unit, ASST-Rhodense, Rho (Milan), Italy. Deparment of Pediatrics, San Paolo Hospital, University of Milan, Milan, Italy. Department of Social Sciences, University of Naples Federico II, Naples, Italy.