1. Medical Surgical Fetal-Neonatal Department, “A. Meyer” University Children’s Hospital, Florence, Italy,
2. CNR Institute of Clinical Physiology, Unit of Environmental Epidemiology, Pisa, Italy,
3. CNR-Tuscany Region “Gabriele Monasterio” Foundation, Unit of Epidemiology, Pisa, Italy,
4. Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy,
5. Medical Genetics Unit, Meyer Children’s University Hospital, Florence, Italy, and
6. Department of Molecular and Developmental Medicine, Obstetrics and Gynecology, University of Siena, Siena, Italy