1. Neonatologic Unit, Obstetric and Paediatric Department; Istituto di Ricovero e Cura a Carattere Scientifico, S. Maria Nuova Hospital; Reggio Emilia Italy
2. Post-Graduate School of Pediatrics; University of Modena and Reggio Emilia; Modena Italy
3. Clinical Genetics Unit, Obstetric and Paediatric Department; Istituto di Ricovero e Cura a Carattere Scientifico, S. Maria Nuova Hospital; Reggio Emilia Italy
4. Obstetric and Gynecologic Unit, Obstetric and Paediatric Department; Istituto di Ricovero e Cura a Carattere Scientifico, S. Maria Nuova Hospital; Reggio Emilia Italy
5. Department of Medical Genetics; Policlinico Sant'Orsola-Malpighi, University of Bologna; Bologna Italy
6. Department of Medical and Surgical Sciences of Childhood and Adult; University of Modena and Reggio Emilia; Modena Italy
7. Department of Haematology; Oncology and Molecular Medecine, Istituto Superiore di Sanità; Rome Italy