Document Type : Original articles
Authors
1 Department of Zoology, Damietta Faculty of Science, Damietta, Egypt
2 Zoology Dep. Faculty of Science, Damietta University
3 Gastrointestinal Surgery Center, Mansoura University
4 Gastrointestinal Surgery Center, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
5 Faculty of Science Damietta University
Abstract
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