title: Interpretation of observational studies.
authors.affiliation: Department of Clinical Epidemiology, Aarhus University Hospital, Vennelyst Boulevard 6, 8000 Aarhus C, Denmark. pj@soci.au.dk
authors.forename: P
authors.initials: P
authors.lastname: Jepsen
authors.forename: S P
authors.initials: SP
authors.lastname: Johnsen
authors.forename: M W
authors.initials: MW
authors.lastname: Gillman
authors.forename: H T
authors.initials: HT
authors.lastname: Sørensen
mesh_terms: D015982:Bias; D015986:Confounding Factors, Epidemiologic; D003627:Data Interpretation, Statistical; D006801:Humans; D019370:Observation; D012107:Research Design