1. Department of Neuroscience, Reproductive Sciences and Dentistry School of Medicine University of Naples Federico II Naples Italy
2. Department of Experimental Clinical and Medical Science DISM Clinic of Obstetrics and Gynaecology University of Udine Udine Italy
3. Department of Obstetrics and Gynaecology Catholic University of Sacred Heart Rome Italy
4. Department of Obstetrics and Gynaecology Women's Health Hospital Assiut University Hospital Assiut Egypt
5. Effective Care Research Unit Eastern Cape Department of Health Fort Hare and Walter Sisulu Universities and University of the Witwatersrand Johannesburg South Africa
6. Division of Maternal–Fetal Medicine Department of Obstetrics and Gynecology Sidney Kimmel Medical College of Thomas Jefferson University Philadelphia PA USA