[1] Cleveland Clin Florida, Ellen Leifer Shulman & Steven Shulman Digest Dis C, Weston, FL 33331 USA
[2] Tel Aviv Univ, Sheba Med Ctr, Dept Surg & Transplantat, Tel Aviv, Israel
[3] Mansoura Univ Hosp, Gen Surg Dept, Colorectal Surg Unit, Mansoura, Egypt
[4] Dow Univ Hlth Sci, Dow Med Coll, Karachi, Pakistan
[5] Hebrew Univ Jerusalem, Dept Gen Surg, Shaare Zedek Med Ctr, Jerusalem, Israel
[6] Cleveland Clin Martin Hlth Tradit, Dept Surg, Port St Lucie, FL USA
[7] Hebrew Univ Jerusalem, Dept Gen Surg, Hadassah Med Org, Jerusalem, Israel