title: Understanding and reducing measurement error.
authors.forename: E S
authors.initials: ES
authors.lastname: Froelicher
mesh_terms: D002318:Cardiovascular Diseases / Q000517:prevention & control*; D015400:Clinical Nursing Research / Q000379:methods; D004812:Epidemiologic Methods / Q000592:standards*; D006801:Humans; D012307:Risk Factors