1. Department of Obstetrics & Gynecology, Ospedale Civile Guastalla, AUSL Reggio Emilia, Reggio Emilia, Italy
2. Department of Diagnostic Imaging, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) “Arcispedale Santa Maria Nuova”, Reggio Emilia, Italy
3. Department of Pathology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) “Arcispedale Santa Maria Nuova”, Reggio Emilia, Italy
4. Department of Obstetrics, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM–Unifesp), São Paulo-SP, Brazil