[1] Univ Leuven, Dept Human Genet, Lab Complex Genet, Leuven, Belgium
[2] Univ Hosp Ghent, Dept Gastroenterol, Ghent, Belgium
[3] Univ Hosp Brussels, Dept Gastroenterol, Brussels, Belgium
[4] Univ Hosp Leuven, Dept Gastroenterol & Hepatol, Leuven, Belgium
[5] Univ Leuven, Dept Chron Dis Metab & Ageing CHROMETA, Leuven, Belgium