[1] Univ Chicago, Dept Surg, 5841 S Maryland Ave, Chicago, IL 60637 USA
[2] Clin Santa Maria, Dept Surg, Providencia, Chile
[3] Univ Wisconsin, Dept Surg, Madison, WI USA
[4] SUNY Stony Brook, Surg, Stony Brook, NY 11794 USA
[5] Univ Colorado, Dept Surg, Aurora, CO USA
[6] Univ Kansas, Med Ctr, Dept Surg, Div Surg Oncol, Kansas City, KS 66103 USA
[7] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA
[8] Univ Arizona, Surg, Tucson, AZ USA
[9] Univ Texas MD Anderson Canc Ctr, Surg Oncol, Houston, TX 77030 USA
[10] Univ Calif San Diego, Div Surg Oncol, Surg, Sharp HealthCare,Sch Med, La Jolla, CA 92093 USA
[11] Univ Calif San Diego, Surg, La Jolla, CA 92093 USA
[12] Ascens St John Hosp, Surg Oncol, Grosse Pointe Woods, MI USA
[13] Inova Schar Canc Inst, Surg Oncol, Fairfax, VA USA
[14] Drexel Univ, Coll Med, Surg, Philadelphia, PA 19104 USA
[15] Duke Univ, Surg, Durham, NC USA
[16] AMITA Hlth, Surg, La Grange, IL USA
[17] Univ Chicago, Med, Chicago, IL 60637 USA
[18] Univ Iowa Hosp & Clin, Dept Surg, Iowa City, IA 52242 USA
[19] Univ Michigan, Sch Med, Dept Surg, Ann Arbor, MI USA
[20] Univ Pittsburgh, Surg, Surg Oncol, Pittsburgh, PA USA
[21] Med Coll Wisconsin, Surg, Milwaukee, WI 53226 USA
[22] Massachusetts Gen Hosp, Dept Surg, Boston, MA 02114 USA
[23] UChicago Med, Radiol, Chicago, IL USA
[24] Univ Tennessee, Surg, Hlth Sci Ctr, Memphis, TN USA
[25] H Lee Moffitt Canc Ctr & Res Inst, GI Oncol, Tampa, FL USA
[26] Univ Chicago, Surg, Chicago, IL 60637 USA
[27] Virginia Commonwealth Univ, Hunter Holmes McGuire VA Med Ctr, Surg Oncol, Massey Canc Ctr, Richmond, VA USA
[28] Baylor Univ, Med Ctr, Dept Surg, Dallas, TX 75246 USA
[29] Med Coll Wisconsin, Dept Surg, 8700 W Wisconsin Ave, Milwaukee, WI 53226 USA
[30] Cedars Sinai Med Ctr, Dept Surg, Surg Oncol, Los Angeles, CA 90048 USA
[31] SUNY Stony Brook, Dept Surg, Div Surg Oncol, Stony Brook, NY 11794 USA
[32] Oregon Hlth & Sci Univ, Dept Surg, Portland, OR 97201 USA
[33] Tufts Med Ctr, Surg Oncol, Boston, MA 02111 USA
[34] Univ Toronto, Div Gen Surg, Sinai Hlth Syst, Toronto, ON, Canada
[35] Mayo Clin, Dept Surg, Rochester, MN USA
[36] Inst Canc Care Mercy, Surg Oncol, Baltimore, MD USA
[37] Univ Maryland, Sch Med, Surg, Baltimore, MD 21201 USA
[38] Univ Chicago, Radiol, Chicago, IL 60637 USA
[39] Univ Chicago, Dept Pathol, 5841 S Maryland Ave, Chicago, IL 60637 USA
[40] Univ N Carolina, Dept Surg, Div Pediat Surg, Sch Med, Chapel Hill, NC 27515 USA
[41] Univ Chicago, Pathol, Chicago, IL 60637 USA
[42] Vanderbilt Univ, Dept Surg, Med Ctr, Nashville, TN 37240 USA
[43] MedStar Georgetown Univ, Surg Oncol, Med Ctr, Washington, DC USA
[44] Montefiore Med Ctr, Surg, 111 E 210th St, Bronx, NY 10467 USA
[45] Johns Hopkins Univ, Surg, Baltimore, MD USA
[46] Roswell Park Comprehens Canc Ctr, Surg Oncol, Buffalo, NY USA
[47] Hosp Univ Penn, Surg, 3400 Spruce St, Philadelphia, PA 19104 USA
[48] Rutgers Canc Inst New Jersey, GI Surg Oncol, New Brunswick, NJ USA
[49] Univ Chicago, Div Surg Oncol, Surg, Endocrine Surg Res Program, Chicago, IL 60637 USA
[50] Univ Chicago, Sect Hematol, Oncol, Chicago, IL 60637 USA