D'Agnolo, Hedwig MaKievit, WietskeAndrade, Raul JKarlsen, Tom HemmingWedemeyer, HeinerDrenth, Joost Ph2023-01-252023-01-252015-11-132050-6406http://hdl.handle.net/10668/10257The exposure of clinicians to patients with rare gastrointestinal diseases is limited. This hurts clinical studies, which impedes accumulation of scientific knowledge on the natural disease course, treatment outcomes and prognosis in these patients. An excellent method to detect patterns on an aggregate level that would not be possible to discover in individual cases, is a registry study. This paper aims to describe a template to create a successful international registry for rare diseases. We focus mainly on rare hepatic diseases, but lessons from this paper serve other fields in medicine, as well.enClinical registrydatabasegastrointestinal diseaseliver diseaseliver transplantationpractical guiderare diseasesrare liver disordersregistry designresearch article27403298open access10.1177/2050640615618042PMC4924439https://europepmc.org/articles/pmc4924439?pdf=renderhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4924439/pdf