[1] Vrije Univ Amsterdam, Amsterdam UMC, Amsterdam Gastroenterol & Metab, Gastroenterol & Hepatol, Amsterdam, Netherlands
[2] Leeuwarden Med Ctr, Dept Gastroenterol & Hepatol, Leeuwarden, Netherlands
[3] Vrije Univ Amsterdam, Amsterdam UMC, Gynecol & Obstet, Amsterdam, Netherlands
[4] Vrije Univ Amsterdam, Amsterdam UMC, Pathol, Amsterdam, Netherlands
[5] Vrije Univ Amsterdam, Amsterdam UMC, Dept Epidemiol & Biostat, Amsterdam, Netherlands
[6] Maastricht Univ, Med Ctr, Dept Internal Med, Div Gastroenterol & Hepatol, Maastricht, Netherlands
[7] Univ Amsterdam, Med Ctr, Locat AMC, Amsterdam, Netherlands
[8] Amphia Ziekenhuis, Breda, Netherlands
[9] Antoni van Leeuwenhoek Ziekenhuis, Amsterdam, Netherlands
[10] Catharina Hosp, Eindhoven, Netherlands
[11] Canisius Wilhelmina Ziekenhuis, Nijmegen, Netherlands
[12] Deventer Ziekenhuis, Deventer, Netherlands
[13] Erasmus MC, Rotterdam, Netherlands
[14] Elisabeth TweeSteden Ziekenhuis, Tilburg, Netherlands
[15] Gelre Ziekenhuizen Apeldoorn, Apeldoorn, Netherlands
[16] Med Ctr Haaglanden, The Hague, Netherlands
[17] Spaarne Gasthuis, Haarlem, Netherlands
[18] Isala, Zwolle, Netherlands
[19] Jeroen Bosch Ziekenhuis, sHertogenbosch, Netherlands
[20] Laurentius Ziekenhuis, Roermond, Netherlands
[21] Leiden Univ, Med Ctr, Leiden, Netherlands
[22] Med Ctr Alkmaar, Alkmaar, Netherlands
[23] Meander Med Ctr, Amersfoort, Netherlands
[24] Nij Smellinghe Ziekenhuis, Drachten, Netherlands
[25] Onze Lieve Vrouwen Gasthuis, Amsterdam, Netherlands
[26] Radboud Univ Nijmegen, Med Ctr, Nijmegen, Netherlands
[27] Rijnstate Ziekenhuis, Arnhem, Netherlands
[28] Slotervaart Hosp, Amsterdam, Netherlands
[29] Tergooiziekenhuizen, Hilversum, Netherlands
[30] Univ Med Ctr Groningen, Groningen, Netherlands
[31] Univ Med Ctr Utrecht, Utrecht, Netherlands
[32] Westfries Gasthuis, Hoorn, Netherlands
[33] Diakonessen Hosp, Utrecht, Netherlands
[34] Zuyderland Ziekenhuis, Heerlen, Netherlands