1. Section of Endocrinology, Diabetes and Metabolism, Department of Medicine University and Azienda Ospedaliera Universitaria Integrata of Verona Verona Italy
2. Section of Rheumatology, Department of Medicine University and Azienda Ospedaliera Universitaria Integrata of Verona Verona Italy
3. Section of Clinical Biochemistry University and Azienda Ospedaliera Universitaria Integrata of Verona Verona Italy
4. Nutrition and Metabolism, Faculty of Medicine University of Southampton Southampton UK
5. Southampton National Institute for Health Research Biomedical Research Centre University Hospital Southampton, Southampton General Hospital Southampton UK
6. Hepatology, Gastroenterology and Nutrition Unit IRCCS “Bambino Gesù” Children's Hospital Rome Italy
7. Department of Pediatrics University “La Sapienza” Rome Italy