title: National Health and Nutrition Examination Survey 1999-2000: effect of observer training and protocol standardization on reducing blood pressure measurement error.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
mesh_terms: D015982:Bias; D001795:Blood Pressure Determination / Q000592:standards*; D004496:Education, Continuing; D006306:Health Surveys; D006801:Humans; D009749:Nutrition Surveys