1. Histology-Embryology Department, Faculty of Medicine, Erciyes University, Kayseri, Turkey
2. Histology-Embryology Department, Faculty of Medicine, Harran University, Sanliurfa, Turkey
3. Histology-Embryology Department, Faculty of Medicine, Bozok University, Yozgat, Turkey
4. Health Care Services Elderly Care Department, Nigde Ömer Halisdemir University, Nigde, Turkey
5. Biology Department, Faculty of Science, Erciyes University, Kayseri, Turkey