[1] Harbor UCLA Med Ctr, Dept Surg, Torrance, CA 90509 USA
[2] Harbor UCLA Med Ctr, Lundquist Inst Biomed Res, Torrance, CA 90509 USA
[3] Harbor UCLA Med Ctr, Dept Emergency Med, Torrance, CA 90509 USA
[4] Brigham & Womens Hosp, Dept Surg, 75 Francis St, Boston, MA 02115 USA
[5] Univ Washington, Dept Surg, Med Ctr, 1959 NE Pacific St,Box 356410, Seattle, WA 98195 USA
[6] Stanford Univ, Dept Surg, Stanford, CA USA
[7] Houston Methodist Hosp, Dept Surg, Houston, TX 77030 USA
[8] UCLA Hlth, Dept Surg, Los Angeles, CA USA
[9] Hosp Univ Penn, Dept Surg, 3400 Spruce St, Philadelphia, PA 19104 USA
[10] Loma Linda Univ Hlth, Dept Surg, Loma Linda, CA USA
[11] Cedars Sinai Med Ctr, Dept Surg, Los Angeles, CA 90048 USA
[12] Univ Nebraska Med Ctr, Dept Surg, Omaha, NE USA
[13] Baptist Hlth Syst, Dept Surg, Birmingham, AL USA
[14] Gundersen Hlth Syst, Gunderson Med Fdn, La Crosse, WI USA
[15] Univ Calif Irvine, Irvine Med Ctr, Dept Surg, Orange, CA 92668 USA
[16] Santa Barbara Cottage Hosp, Dept Surg, Santa Barbara, CA USA
[17] Oregon Hlth & Sci Univ, Dept Surg, Portland, OR 97201 USA
[18] Univ Calif Davis, Dept Surg, Sacramento, CA 95817 USA
[19] Univ Hawaii Manoa, John A Burns Sch Med, Dept Surg, Honolulu, HI 96822 USA
[20] Southern Illinois Sch Med, Dept Surg, Springfield, IL USA
[21] WellSpan York Hosp, Dept Surg, York, PA USA
[22] LAC USC Med Ctr, Dept Surg, Los Angeles, CA USA