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1. Dept. Obstetrics and Gynecology, Magenta. Italy, 2. Dept. Obstetrics and Gynecology, Magenta. Italy, 3. Dept. Obstetrics and Gynecology, IRRCS Fondazione Policlinico Mangiagalli e Regina Elena, Milano. Italy, 4. Dept. Obstetrics and Gynecology, Anzio. Italy, 5. Dept. Obstetrics and Gynecology, Montecchio Emilia. Italy, 6. Dept. Obstetrics and Gynecology, Montecchio Emilia. Italy
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