الإتاحة: https://doi.org/10.1093/ecco-jcc/jjaa173Testhttps://research.wur.nl/en/publications/disease-activity-patterns-of-crohns-disease-in-the-first-ten-yearTest
الإتاحة: https://doi.org/10.1007/s10620-016-4397-6Testhttps://cris.maastrichtuniversity.nl/en/publications/e2a3d228-87f6-4120-9553-c506bea27eebTest