title: Repeated measurement and analysis units. Review of basic principles.
authors.affiliation: NEPI Foundation, Malamö University Hospital, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Ranstam
mesh_terms: D015982:Bias; D001795:Blood Pressure Determination / Q000592:standards; D003625:Data Collection / Q000379:methods*; D003627:Data Interpretation, Statistical; D006801:Humans; D019370:Observation / Q000379:methods*; D015203:Reproducibility of Results