Document Type : Original Article
Authors
1 Neurosurgery Department , Benha Faculty of Medicine, Benha University ,Egypt
2 neurosurgery Department, Benha faculty of medicine, Benha university , Benha city , Egypt
3 Radiology department , Faulty of Medicine , Benha University, Benha , Egypt
4 Neurosurgery department, Cairo faculty of Medicine, Cairo university , egypt
5 Neurosurgery Department, faculty of medicine, Benha university , Benha city , Egypt
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