[1] Harbor Univ Calif, Los Angeles Med Ctr, Dept Surg, 1000 W Carson St,POB 25, Torrance, CA 90509 USA
[2] Univ Calif, Irvine Med Ctr, Dept Surg, Orange, CA USA
[3] Cedars Sinai Med Ctr, Dept Surg, Los Angeles, CA 90048 USA
[4] Univ Washington, Dept Surg, Med Ctr, Seattle, WA USA
[5] Harbor Univ Calif, Los Angeles Med Ctr, Dept Emergency Med, Torrance, CA 90509 USA
[6] Lundquist Inst, Torrance, CA USA
[7] Cleveland Clin Fdn, Dept Surg, Cleveland, OH USA
[8] Cleveland Clin Florida, Dept Surg, Weston, FL USA
[9] Gunderson Med Fdn, Dept Surg, La Crosse, WI USA
[10] Univ Arkansas Med Sci, Dept Surg, Little Rock, AR USA
[11] Univ Calif Davis, Sch Med, Dept Surg, Sacramento, CA USA
[12] Brookwood Baptist Med Ctr, Dept Surg, Birmingham, AL USA
[13] Southern Illinois, Dept Surg, Sch Med, Springfield, IL USA
[14] Univ Hawaii Manoa, Dept Surg, Honolulu, HI USA
[15] Univ Calif Los Angeles, Dept Surg, Los Angeles, CA 90024 USA
[16] Loma Linda Univ, Dept Surg, Loma Linda, CA USA