1. Department of Obstetrics and Gynecology; Fondazione IRCCS Policlinico San Matteo Ringgold Standard Institution; Pavia Italy
2. Department of Pediatrics; Fondazione IRCCS Policlinico San Matteo Ringgold Standard Institution; Pavia Italy
3. Anatomic Pathology Unit; Fondazione IRCCS Policlinico San Matteo Ringgold Standard Institution; Pavia Italy