Document Type : Original Article
Authors
1 Department of Anatomy and Histology, Veterinary Medicine faculty, Tikrit University, Tikrit, Iraq.
2 Department of Physiology, Pharmacology and Biochemistry, Veterinary Medicine faculty, Tikrit University, Tikrit, Iraq.
3 Department of Biology, Faculty of Education for Pure Science, Tikrit University, Tikrit, Iraq.
4 Department of Medical Laboratory Technique, Al-noor University College, Mosul, Iraq.
5 General Directorate for Education of Kirkuk, Ministry of education, Iraq.
Abstract
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