[1] Univ Bologna, Dept Med & Surg Sci, S Orsola Malpighi Hosp, Gynecol & Pathophysiol Human Reprod Unit, Bologna, Italy
[2] Univ Roma Tor Vergata, Dept Biomed & Prevent, Rome, Italy
[3] Univ Bologna, Dept Expt Diagnost & Special Med, S Orsola Malpighi Hosp, Surg Pathol, Bologna, Italy
[4] Univ Bologna, Dept Biol Geol & Environm Sci, Bologna, Italy