[1] Univ Padua, Dept Internal Med, Padua, Italy
[2] Tel Aviv Univ, Hasharon Hosp, Dept Internal Med D, Sackler Sch Med,Rabin Med Ctr, Tel Aviv, Israel
[3] Tel Aviv Univ, Hasharon Hosp, Obes Clin, Sackler Sch Med,Rabin Med Ctr, Tel Aviv, Israel
[4] Herzliya Med Ctr, Clin Pharm, Herzliyya, Israel
[5] UCL, Rayne Inst, Dept Med, Ctr Obes Res, London, England
[6] Univ Coll London Hosp, Bariatr Ctr Weight Management & Metab Surg, London, England
[7] Univ Coll London Hosp, Natl Inst Hlth Res, Biomed Res Ctr, London, England
[8] Univ Hosp Geneva, Obes Prevent & Care Program Contrepoids, Serv Therapeut Educ Chron Dis, Dept Community Med Primary Care & Emergency, Geneva, Switzerland
[9] Univ Geneva, Geneva, Switzerland
[10] Charles Univ Prague, Fac Med 1, Ctr Treatment Obes & Metab Disorders, OB Klin, Prague, Czech Republic
[11] Univ Oslo, Morbid Obes Ctr, Vestfold Hosp Trust, Oslo, Norway
[12] Univ Oslo, Dept Endocrinol Morbid Obes & Prevent Med, Inst Clin Med, Oslo, Norway
[13] Med Univ Innsbruck, Dept Psychiat & Psychotherapy 2, Innsbruck, Austria
[14] Med Univ Graz, Dept Med, Graz, Austria
[15] Med Univ Vienna, Dept Med 3, Vienna, Austria
[16] Istanbul Univ, Div Endocrinol Metab & Diabet, Dept Med, Cerrahpasa Med Fac, Istanbul, Turkey