[1] Takeda Oy, Helsinki, Finland
[2] MedEngine Oy, Helsinki, Finland
[3] Univ Oulu, Ctr Life Course Hlth Res, Fac Med, Oulu, Finland
[4] Turku Univ Hosp, Div Gastroenterol, Dept Med, Turku, Finland
[5] Oulu Univ Hosp, Div Gastroenterol, Dept Med, Oulu, Finland
[6] Tampere Univ Hosp, Dept Gastroenterol & Alimentary Tract Surg, Tampere, Finland
[7] Kuopio Univ Hosp, Dept Internal Med, Kuopio, Finland
[8] Satakunta Cent Hosp, Dept Internal Med, Pori, Finland
[9] Kanta Hame Cent Hosp, Dept Internal Med, Hameenlinna, Finland
[10] Lapland Cent Hosp, Dept Internal Med, Rovaniemi, Finland
[11] TYKS Salo Hosp, Dept Internal Med, Salo, Finland
[12] Helsinki Univ Hosp, Jorvi Hosp, Dept Gastroenterol, Espoo, Finland
[13] HUS Hyvinkaa Hosp, Dept Internal Med, Hyvinkaa, Finland
[14] Cent Hosp Cent Finland, Dept Internal Med, Jyvaskyla, Finland
[15] Helsinki Univ Hosp, Peijas Hosp, Dept Gastroenterol, Vantaa, Finland
[16] North Karelia Cent Hosp, Dept Gastroenterol, Joensuu, Finland
[17] Pietarsaari Hosp, Dept Internal Med, Pietarsaari, Finland
[18] Paijat Hame Cent Hosp, Dept Internal Med, Lahti, Finland
[19] Savonlinna Cent Hosp, Dept Internal Med, Savonlinna, Finland
[20] Vaasa Cent Hosp, Dept Internal Med, Vaasa, Finland
[21] South Karelia Cent Hosp, Dept Internal Med, Lappeenranta, Finland
[22] Seinajoki Cent Hosp, Dept Internal Med, Seinajoki, Finland
[23] Kainuu Cent Hosp, Dept Internal Med, Kajaani, Finland
[24] Cent Ostrobothnia Cent Hosp, Dept Internal Med, Kokkola, Finland
[25] Turku City Hosp, Dept Internal Med, Turku, Finland
[26] Mikkeli Cent Hosp, Dept Internal Med, Mikkeli, Finland
[27] HUS Porvoo Hosp, Dept Internal Med, Porvoo, Finland
[28] Forssa Hosp, Dept Internal Med, Forssa, Finland
[29] Oulu Univ Hosp, Unit Primary Hlth Care, Oulu, Finland
[30] Helsinki Univ Hosp, Dept Gastroenterol, Helsinki, Finland
[31] Univ Helsinki, Helsinki, Finland