[1] George Washington Univ, Dept Surg, Ctr Trauma & Crit Care, 2150 Penn Ave NW,Suite 6B, Washington, DC 20037 USA
[2] Univ Calif Irvine, Dept Surg, Orange, CA 92668 USA
[3] Univ Mississippi, Dept Surg, Jackson, MS 39216 USA
[4] Loma Linda Med Ctr, Dept Surg, Loma Linda, CA USA
[5] Univ Penn, Dept Surg, Philadelphia, PA 19104 USA
[6] Univ Kentucky, Dept Surg, Lexington, KY USA
[7] Crozer Chester Med Ctr, Dept Surg, Upland, PA USA
[8] John Peter Smith Med Ctr, Dept Surg, Ft Worth, TX USA
[9] Tufts Med Ctr, Dept Surg, Boston, MA 02111 USA
[10] Christiana Med Ctr, Dept Surg, Wilmington, DE USA
[11] Univ Hosp, Dept Surg, Camden, NJ USA
[12] Univ Colorado, Dept Surg, Aurora, CO USA
[13] Spartanburg Med Ctr, Dept Surg, Spartanburg, SC USA
[14] Med City Plano, Dept Surg, Plano, TX USA
[15] Marshfield Clin Fdn Med Res & Educ, Dept Surg, Marshfield, WI USA
[16] Mt Sinai Hosp, Dept Surg, Chicago, IL USA
[17] Grant Med Ctr, Dept Surg, Columbus, OH USA
[18] Univ Rochester, Dept Surg, Sch Med, Rochester, NY USA
[19] Penn State Hershey Med Ctr, Dept Surg, Hershey, PA USA