1. Department of Obstetrics and Gynecology and CERICSAL (CEntro di RIcercaClinicoSALentino), “Veris delli Ponti Hospital”, 73020 Scorrano, LE, Italy
2. Clinic for Gynecology and Obstetrics, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
3. Department of Gynecology and Obstetrics, Pia Fondazione “Card. G. Panico”, 73039 Tricase, LE, Italy
4. Department of Obstetrics, Gynecology and Reproductive Medicine, Saarland University, 66421 Homburg, Saar, Germany
5. Department of Biomedical Sciences and Human Oncology, University of Bari, 70121 Bari, BA, Italy
6. Unit of Obstetrics and Gynecology, University of Bari, 70121 Bari, BA, Italy
7. School of Medicine, University of Belgrade, 11080 Belgrade, Serbia