[1] Jinnah Med Coll Hosp, Dept Surg, SR-6,7-A Korangi Ind Area, Karachi 74900, Pakistan
[2] Jinnah Med Coll Hosp, Dept Obstet & Gynecol, SR-6,7-A Korangi Ind Area, Karachi 74900, Pakistan
[3] Jinnah Med Coll Hosp, Dept Emergency, SR-6,7-A Korangi Ind Area, Karachi 74900, Pakistan
[4] Aga Khan Univ Hosp, Mind & Brain Serv Line, Stadium Rd,POB 3500, Karachi, Pakistan
[5] Jinnah Med Coll Hosp, Dept Surg & Urol, SR-6,7-A Korangi Ind Area, Karachi 74900, Pakistan