[1] Univ Cincinnati, Dept Colorectal Surg, Cincinnati, OH USA
[2] Harvard Med Sch, Massachusetts Gen Hosp, Pelv Floor Disorders Ctr, Dept Radiol, Boston, MA 02115 USA
[3] Cairo Univ, Pelv Floor Ctr Excellency, Dept Radiol, Cairo, Egypt
[4] Cairo Univ, Res Lab, Fac Med, Cairo, Egypt
[5] Teaching Hosp, Cairo, Egypt
[6] Cleveland Clin Hosp, Dept Colorectal Surg, Cleveland, OH USA
[7] Univ Illinois, Dept Urol, Chicago, IL USA
[8] Univ Oklahoma, Dept Obstet & Gynecol, Oklahoma City, OK USA
[9] USC, Keck Med Ctr, Dept Radiol, Los Angeles, CA USA
[10] Univ Virginia, INOVA Womens Hosp, Dept Obstet & Gynecol, Falls Church, VA USA
[11] Harvard Med Sch, Massachusetts Gen Hosp, Pelv Floor Disorders Ctr, Dept Obstet Gynecol, Boston, MA 02115 USA
[12] UT Southwestern Med Ctr, Dept Radiol, Dallas, TX USA
[13] Harvard Med Sch, Massachusetts Gen Hosp, Pelv Floor Disorders Ctr, Sect Colorectal Surg,Div Gen & Gastrointestinal S, 15 Parkman St,WACC 460, Boston, MA 02114 USA