1. Department of Histology and Embryology, Faculty of Medicine, Trakya University, Edirne, Turkey.
2. Department of Histology and Embryology, Faculty of Medicine, Bulent Ecevit University, Zonguldak, Turkey.
3. Department of Biology, Faculty of Science, Trakya University, Edirne, Turkey.
4. Department of Biostatistics, Faculty of Medicine, Adnan Menderes University, Aydın, Turkey.