[1] Univ Rzeszow, Med Coll Rzeszow Univ, Rzeszow, Poland
[2] European Childhood Obes Grp ECOG, Brussels, Belgium
[3] Med Univ Warsaw, Dept Pediat Gastroenterol & Nutr, Warsaw, Poland
[4] European Acad Paediat EAP, Geneva, Switzerland
[5] Paracelsus Med Univ, Dept Pediat, Obes Res Unit, Salzburg, Austria
[6] Paracelsus Med Univ, Div Pediat Gastroenterol Hepatol & Nutr, Salzburg, Austria
[7] European Univ Cyprus, Sch Med, Engomi, Cyprus
[8] Larnaca Gen Hosp, Paediat Dept, Larnax, Cyprus
[9] LMU Ludwig Maximilians Univ Munich, Univ Hosp, Dr von Hauner Childrens Hosp, Munich, Germany