title: Bias from missing values: sex differences in implication of failed venepuncture for the Scottish Heart Health Study.
authors.forename: W
authors.initials: W
authors.lastname: Vach
authors.forename: M
authors.initials: M
authors.lastname: Blettner
mesh_terms: D015982:Bias; D003327:Coronary Disease / Q000453:epidemiology*; D003627:Data Interpretation, Statistical; D006801:Humans; D012606:Scotland / Q000453:epidemiology