Document Type : Preliminary preprint short reports of original research
Authors
1 Gastrointestinal (GIT) Surgical Unit, Department of Surgery, Faculty of Medicine, University of Alexandria
2 Gastroenterology (GIT) Surgical Unit, Department of Surgery, Faculty of Medicine, University of Alexandria
3 Lecturer of experimental and clinical surgery Medical research Institute University of Alexandria
4 upper GIT and liver unit B surgery department faculty of medicine Alexandria Univerisity
Abstract
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