1. Caveat emptor The American Journal of Medicine
Allan Jaffe, MD 
The American Journal of Medicine 
Volume 115, Issue 3, Pages (August 2003)
DOI: /S (03)

2. Figure
Effects of precision (coefficient of variability [CV]) on confidence intervals for a given value. With a cutoff value of 0.1 μg/L and a CV of 10%, one can be 95% confident that the values of μg/L and μg/L (3 SDs apart) are different. With a CV of 50%, one would need values of μg/L and μg/L to know with 95% confidence that the values are different. Reproduced with permission from Hollander JE, Apple FS, Jaffe AS. Emergency Physician's Guide to the Use of Cardiac Troponins and Other Cardiac Markers in the Diagnosis and Management of Patients with Chest Pain. Trevose, PA: Medical Education Group LLC, Euro RSCG; 2003:11.
The American Journal of Medicine  , DOI: ( /S (03) )