[1] EuromedClin, Dept Gen Visceral & Vasc Surg, Hernia Ctr, D-90763 Furth, Germany
[2] St Vincent Hosp & Hlth Care Ctr, Indianapolis, IN 46260 USA
[3] Univ Copenhagen, Koge Hosp, Dept Surg, Koge, Denmark
[4] Elisha Med Ctr, Dept Surg, Haifa, Israel
[5] SUNY Hlth Sci Ctr, Lutheran Med Ctr, Dept Surg, Staten Isl, NY USA
[6] Vivantes Hosp, Dept Surg, D-13585 Berlin, Germany
[7] Vivantes Hosp, Ctr Minimally Invas Surg, D-13585 Berlin, Germany
[8] St Olavs Hosp, Dept Surg, Trondheim, Norway
[9] Klin Pk, CH-8001 Zurich, Switzerland
[10] Natl Univ Singapore Hosp, YYL Sch Med, Minimally Invas Surg Ctr, KTP Adv Surg Training Ctr, Singapore 119074, Singapore
[11] All India Inst Med Sci, Div Minimally Invas Surg, JPN Apex Trauma Ctr, New Delhi 110029, India
[12] Malmo Univ Hosp, Sect Laparoscopy & Abdominal Wall Reconstruct, Dept Surg, S-20502 Malmo, Sweden
[13] Univ Seville, Adv Laparoscop Unit, Univ Hosp Virgen del Rocio, Gen Digest & Laparoscop Surg Unit,USP Sagrado Cor, Seville, Spain
[14] Gross Sand Hosp Hamburg, Dept Surg, D-21107 Hamburg, Germany
[15] Univ Copenhagen, Dept Surg D, Herlev Hosp, Copenhagen, Denmark
[16] Univ Witten Herdecke, Inst Res Operat Med, Cologne, Germany
[17] Vivantes Hosp, Dept Surg, D-13585 Berlin, Germany
[18] Vivantes Hosp, Ctr Minimally Invas Surg, D-13585 Berlin, Germany
[19] St Vincent Hosp & Hlth Care Ctr, Dept Gen Surg, Indianapolis, IN 46260 USA
[20] Pius Hosp, Dept Surg, D-26121 Oldenburg, Germany
[21] Max Healthcare Inst Ltd, Minimal Access Metab & Bariatr Surg, New Delhi, India