Liu, Ying <br/><br/>
National Health and Nutrition Examination Survey 1999-2000: effect of observer training and protocol standardization on reducing blood pressure measurement error.  [electronic resource] 

 -  Journal of clinical epidemiology  Jun 2004 
 - 651; author reply 652 p.  digital 
<br/><br/> Publication Type: Letter; Comment 
<br/><br/><label>ISSN: </label>0895-4356 
<br/><br/><label>Standard No.: </label>10.1016/j.jclinepi.2004.02.001  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bias<br/>Blood Pressure Determination--standards<br/>Education, Continuing<br/>Health Surveys<br/>Humans<br/>Nutrition Surveys