title: Follow-up time bias and Crohn's disease.
authors.forename: H
authors.initials: H
authors.lastname: Inskip
authors.forename: D
authors.initials: D
authors.lastname: Coggon
authors.forename: C
authors.initials: C
authors.lastname: Osmond
mesh_terms: D000328:Adult; D017668:Age of Onset; D015982:Bias; D002648:Child; D003424:Crohn Disease / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D005500:Follow-Up Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D013997:Time Factors