[1] Harbor UCLA Med Ctr, Dept Surg, 1000 W Carson St,Box 25, Torrance, CA 90509 USA
[2] Los Angeles BioMed Res Inst, Torrance, CA USA
[3] Univ Calif Davis, Dept Surg, Sacramento, CA 95817 USA
[4] Loma Linda Univ, Dept Surg, Loma Linda, CA 92350 USA
[5] Univ Southern Calif, Dept Surg, Los Angeles, CA USA
[6] Iowa Methodist Med Ctr, Cent Iowa Hlth Syst, Dept Surg, Des Moines, IA USA
[7] Cedars Sinai Med Ctr, Dept Surg, Los Angeles, CA 90048 USA
[8] Univ Nebraska Med Ctr, Dept Surg, Omaha, NE USA
[9] Columbia Univ, Dept Surg, New York, NY USA
[10] York Hosp, Dept Surg, York, N Yorkshire, England
[11] Univ Texas Hlth Sci Ctr San Antonio, Dept Surg, San Antonio, TX 78229 USA
[12] UCLA, Dept Surg, Los Angeles, CA USA
[13] Santa Barbara Cottage Hosp, Dept Surg, Santa Barbara, CA USA
[14] Mt Carmel Hlth Syst, Dept Surg, Columbus, OH USA
[15] Univ Calif San Diego, Dept Surg, San Diego, CA 92103 USA
[16] Gundersen Lutheran Med Fdn, Dept Surg, La Crosse, WI USA
[17] Stanford Univ, Dept Surg, Palo Alto, CA 94304 USA
[18] Southern Illinois Univ, Sch Med, Dept Surg, Springfield, IL USA
[19] Univ Penn, Dept Surg, Philadelphia, PA 19104 USA
[20] Univ Colorado, Dept Surg, Denver, CO 80202 USA
[21] Univ Calif Irvine, Dept Surg, Irvine, CA 92717 USA
[22] Univ San Francisco, Dept Surg, Fresno, CA USA
[23] Harbor UCLA Med Ctr, Dept Emergency Med, Torrance, CA 90509 USA