1. Department of Periodontology; Faculty of Dentistry; Ondokuzmayis University; Samsun Turkey
2. Department of Periodontology; Faculty of Dentistry; Istanbul Aydin University; Istanbul Turkey
3. Department of Histology and Embryology; Faculty of Medicine; Ondokuzmayis University; Samsun Turkey
4. Department of Histology and Embryology; Faculty of Medicine; Trakya University; Edirne Turkey
5. Department of Obstetrics, Gynecology & Reproductive Sciences; Yale University; New Haven CT USA
6. Department of Nephrology; Faculty of Medicine; Ondokuzmayis University; Samsun Turkey
7. Dental Surgery; Yale University; New Haven CT USA