[1] Clin Ctr Minimally Invas & Bariatr Surg, Prague, Czech Republic
[2] Charles Univ Prague, Fac Med 1, Inst Endocrinol, Prague, Czech Republic
[3] Charles Univ Prague, Fac Med 3, Inst Endocrinol, Prague, Czech Republic
[4] Univ Paris, INSERM, U755 Nutrion, F-75252 Paris, France
[5] Hop Hotel Dieu, APHP, Paris, France
[6] Univ Minnesota, Dept Surg, Minneapolis, MN 55455 USA
[7] OBES SURG, Toronto, ON, Canada
[8] Addenbrookes Hosp, Wellcome Clin Res Facil, Cambridge, England
[9] Univ Cambridge, Sch Clin Med, Cambridge CB2 1TN, England
[10] Univ Hosp Maastricht, Dept Surg, Maastricht, Netherlands
[11] Clinik Lindberg AG, Winterthur, Switzerland
[12] Univ Amsterdam, Acad Med Ctr, Dept Gastroenterol & Hepatol, NL-1012 WX Amsterdam, Netherlands
[13] Univ Genoa, San Martino Univ Hosp, Genoa, Italy
[14] Beau Site Clin Berne, Hirslanden Grp, Bern, Switzerland
[15] Univ Athens, Sch Med, Evgenidon Hosp, Endocrinol Metab & Diabet Unit, GR-11527 Athens, Greece
[16] Goethe Univ Frankfurt, Ctr Minimally Invas Surg, D-6000 Frankfurt, Germany
[17] Sachsenhausen Hosp, Frankfurt, Germany
[18] Med Univ Vienna, Dept Pediat Nutr & Metab, Vienna, Austria