Quisisana Hospital, Ferrara. email@example.com. Department of Pediatrics, Division of Endocrinology, Hamad General Hospital, Doha, Qatar and Department of Pediatrics, Division of Endocrinology, Alexandria University Children's Hospital, Alexandria, Egypt. firstname.lastname@example.org. Department of Diabetes and Endocrinology, Whittington Hospital, University College London, London, N19 5NF UK. email@example.com. Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman. firstname.lastname@example.org. Department of Pediatrics, NYU School of Medicine, New York, NY, USA. email@example.com. First Department of Paediatrics, National Kapodistrian University of Athens 11527, Greece. firstname.lastname@example.org.