By Shafik Ahmed   Shafik Ismail   Shafik Ali   Sibai Olfat El   in Journal of Investigative Surgery

ISSN:1521-0553|20|5|307-311

Informa Healthcare‎(2007)‎

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By Shafik Ahmed   Sibai Olfat El   Shafik Ali   Ahmed Ismail   in Scandinavian Journal of Urology and Nephrology

ISSN:0036-5599|38|3|243-246

Informa Healthcare‎(2004)‎

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