1. Department of Obstetrics and Gynecology Iaso Maternity Hospital Athens Greece
2. Department of Ophthalmology Athens Eye Hospital Athens Greece
3. Department of Embryology, Faculty of Medicine University of Thessaly Larissa Greece
4. Department of Obstetrics and Gynaecology Alexandra General Hospital Athens Greece
5. Department of Obstetrics and Gynaecology Royal Cornwall Hospital Truro UK
6. Department of Obstetrics and Gynaecology, Medical School University of Ioannina Ioannina Greece