1. Department of Obstetrics and Gynecology, School of Medicine, Hacettepe University , Ankara, Turkey
2. Anatolia IVF and Women Health Centre , Ankara, Turkey
3. Department of Medical Services and Techniques, First and Emergency Aid Program, School of Health Services, Atılım University Vocational , Ankara, Turkey
4. Androfert, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction , Campinas, SP, Brazil
5. Department of Clinical Medicine, Aarhus University , Aarhus, Denmark
6. The Fertility Clinic, Skive Regional Hospital , Skive, Denmark