From the Department From the Department of Surgery (Z.G.H., A.M., F.S., A.P., H.Z.), Aga Khan University Hospital, Karachi, Pakistan; Center for Surgical Trials and Outcomes Research (Z.G.H., A.H.H., A.L.), Department of Surgery, The Johns Hopkins School of Medicine, Baltimore, Maryland; and Department of Surgery (S.N.Z.), Howard University College of Medicine, Washington, District of Columbia; and Department of Surgery (M.K.), University of Arizona, Tucson, Arizona.
Submitted: December 1, 2012, Revised: March 23, 2013, Accepted: March 27, 2013.
This study was presented at the 26th Annual Scientific Assembly of the Eastern Association for the Surgery of Trauma, January 15–19, 2013, in Scottsdale, Arizona.
Supplemental digital content is available for this article. Direct URL citations appear in the printed text, and links to the digital files are provided in the HTML text of this article on the journal’s Web site (www.jtrauma.com).
Address for reprints: Hasnain Zafar, MBBS, Department of Surgery, Aga Khan University Hospital, Stadium Rd, PO Box 3500, Karachi 74800, Pakistan; email: [email protected].