1. International Doctorate School in Clinical and Experimental Medicine, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
2. Obstetrics and Gynecology Unit, Mother-Infant Department, Policlinic Hospital, University of Modena and Reggio-Emilia, Modena, Italy
3. School of Midwifery Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, Modena, Italy