*- Published as poster presentation by the co-author (Prof. Mostafa Ahmad Hamad; prof. of surgery and laparoscopy- Assuit niversity) in the 8th conference of world endoscopic surgery, New York-USA, Marsh 2003.
*- Published as poster presentation by the co-author (Prof. Mostafa Ahmad Hamad; prof. of surgery and laparoscopy- Assuit niversity) in the 8th conference of world endoscopic surgery, New York-USA, Marsh 2003.
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