1. Department of Medical Biochemistry, Medical Faculty, Nigde Omer Halisdemir University, Nigde
2. Departments of Histology and Embryology, Medical Faculty, Inonu University, Malatya
3. Department of Biostatistics, Medical Faculty, Inonu University, Malatya
4. Department of Medical Biochemistry, Medical Faculty, Inonu University, Malatya, Turkey