1. Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy
2. Pediatric Department, Buzzi Children’s Hospital, 20154 Milan, Italy
3. Laboratory of Dietetics and Clinical Nutrition, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27100 Pavia, Italy
4. Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
5. Pediatric Cardiology Unit, “V. Buzzi” Children’s Hospital, 20154 Milan, Italy
6. Department of Biomedical and Clinical Science “L. Sacco”, University of Milan, 20157 Milan, Italy