[1] Univ Enna Kore, Cannizzaro Hosp, Dept Obstet & Gynecol, I-94100 Enna, Italy
[2] Cannizzaro Hosp, Dept Anat Pathol & Histol, I-95100 Catania, Italy
[3] Cannizzaro Hosp, Dept Clin Pathol & Genom, I-95100 Catania, Italy
[4] Univ Naples Federico II, Dept Publ Hlth, I-80126 Naples, Italy
[5] Univ Catania, Policlin G Rodol, Dept Obstet & Gynecol, CHIRMED, I-95124 Catania, Italy