[1] Emory Univ, Div Digest Dis, Dept Med, Sch Med, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[2] Emory Univ, Rollins Sch Publ Hlth, Dept Biostat & Bioinformat, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[3] Emory Univ, Sch Med, Dept Surg, Div Cardiothorac Surg, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[4] Emory Univ, Winship Canc Inst, Dept Surg, Div Surg Oncol, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[5] Canc Treatment Ctr Amer, Intervent Endoscopy Gastroenterol & Nutr, Newnan, GA USA
[6] Emory Univ, Sch Med, Dept Med, 1364 Clifton Rd NE, Atlanta, GA 30322 USA
[7] Emory Univ, Winship Canc Inst, Hematol & Med Oncol, 1364 Clifton Rd NE, Atlanta, GA 30322 USA