1. Department of Neonatology, Denizli T. C. Public Health Hospital, Denizli, Turkey
2. Department of Biochemistry, Golbasi Public Health Hospital, Ankara, Turkey
3. Department of Pediatrics, Zekai Tahir Burak Maternity and Teaching Hospital, Ankara, Turkey
4. Department of Pediatrics, Dr. Sami Ulus Children Research and Training Hospital, Ankara, Turkey
5. Department of Obstetric and Gynecology, Jinomed Woman Health Center, Ankara, Turkey