[1] Ctr Hosp Sao Joao, Gastroenterol Dept, Porto Al Prof Hernani Monteiro 4200-319, Porto, Portugal
[2] Humanitas Res Hosp, Digest Endoscopy Unit, Milan, Italy
[3] Humanitas Univ, Milan, Italy
[4] Hop Prive Peupliers Paris, Dept Gastroenterol & Hepatol, Paris, France
[5] Univ Libre Bruxelles, Erasme Univ Hosp, Dept Gastroenterol Hepatopancreatol & Digest Onco, Brussels, Belgium
[6] Univ Amsterdam, Amsterdam Univ Med Ctr, Dept Gastroenterol & Hepatol, Amsterdam, Netherlands
[7] Univ Pernambuco, Dept Surg, Recife, PE, Brazil
[8] Florida Int Univ, Herbert Wertheim Coll Med, Dept Surg, Miami, FL 33199 USA
[9] Univ Libre Bruxelles, Dept Gastroenterol & Hepatol, CHU St Pierre, Brussels, Belgium
[10] Johns Hopkins Med Inst, Dept Med, Baltimore, MD 21205 USA
[11] Johns Hopkins Med Inst, Div Gastroenterol & Hepatol, Baltimore, MD 21205 USA
[12] Penn State Milton S Hershey Med Ctr, Dept Surg, Sect Minimally Invas & Bariatr Surg, Hershey, PA USA
[13] POVISA Hosp, Gastroenterol Dept, Vigo, Pontevedra, Spain
[14] Duke Univ, Dept Surg, Div Metab & Weight Loss Surg, Durham, NC USA
[15] Catholic Univ, Fdn Policlin Univ A Gemelli, IRCCS, Digest Endoscopy Unit, Rome, Italy
[16] Radboud Univ Nijmegen, Med Ctr, Dept Gastroenterol & Hepatol, Nijmegen, Netherlands
[17] Swedish Canc Inst, Div Thorac Surg, Seattle, WA USA
[18] Med Ctr, Seattle, WA USA
[19] Hop Prive Peupliers, Dept Gastroenterol & Hepatol, Paris, France
[20] San Paolo Hosp, Digest Endoscopy Unit, Milan, Italy
[21] Univ Hosp Zurich, Div Gastroenterol & Hepatol, Zurich, Switzerland
[22] Aix Marseille Univ, Hop Nord, AP HM, Dept Gastroenterol, Marseille, France
[23] Univ Fed Parana, Curitiba, Parana, Brazil
[24] Univ Texas Houston, Grad Sch Biomed Sci, Houston, TX USA
[25] MD Anderson Canc Ctr, Houston, TX USA
[26] Kathol Marienkrankenhaus Hamburg gGmbH, Dept Gen Abdominal Thorac & Vasc Surg, Hamburg, Germany
[27] Kaplan Med Ctr, Dept Surg, Rehovot, Israel
[28] Hebrew Univ Jerusalem, Sch Med, Jerunited Stateslem, Israel
[29] AZ Sint Blasius Med Ctr, Dept Bariatr Surg, Dendermonde, Belgium
[30] Cairo Univ, Dept Gastroenterol, Gastrointestinal Endoscopy Unit, Cairo, Egypt
[31] Kagawa Univ, Fac Med, Dept Gastroenterol & Neurol, Takamatsu, Kagawa, Japan
[32] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Med, Seoul, South Korea
[33] Seoul Natl Univ, Coll Med, Dept Internal Med, Div Gastroenterol, Seoul, South Korea
[34] Seoul Natl Univ, Coll Med, Liver Res Inst, Seoul, South Korea
[35] Natl Taiwan Univ Hosp, Dept Surg, Taipei, Taiwan
[36] Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden
[37] Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden
[38] Univ Barcelona, Hosp Univ Bellvitge, Bellvitge Biomed Res Inst IDIBELL, Endoscopy Unit,Dept Digest Dis, Barcelona, Spain
[39] Med Sch Hannover, Dept Gastroenterol Hepatol & Endocrinol, Hannover, Germany
[40] Indiana Univ, Div Gastroenterol & Hepatol, Indianapolis, IN 46204 USA
[41] Cha Univ, Coll Med, Cha Bundang Med Ctr, Dept Gastroenterol, Seongnam Si, South Korea
[42] Aristotle Univ Thessaloniki, AHEPA Hosp, Dept Surg, Thessaloniki, Greece
[43] Beijing Univ, Canc Hosp, Dept Thorac Surg 1, Beijing, Peoples R China
[44] Oregon Clin, Gastrointestinal & Minimally Invas Surg, Portland, OR USA
[45] King Saud Univ, King Khalid Univ Hosp, Div Gastroenterol, Riyadh, Saudi Arabia
[46] Complejo Hosp Pontevedra, Dept Gastroenterol, Pontevedra, Spain
[47] Tel Aviv Univ, Sackler Sch Med, Tel Aviv Med Ctr, Obes Serv,Dept Gastroenterol & Liver Dis, Tel Aviv, Israel
[48] Johns Hopkins Med Inst, Dept Surg, Baltimore, MD 21205 USA
[49] Kantonsspital St Gallen, Div Gastroenterol, St Gallen, Switzerland
[50] Mayo Clin, Dept Gastroenterol & Gen Surg, Rochester, MN USA