Westgard, Sten A <br/><br/>
Utilizing global data to estimate analytical performance on the Sigma scale: A global comparative analysis of methods, instruments, and manufacturers through external quality assurance and proficiency testing programs.  [electronic resource] 

 -  Clinical biochemistry  Jun 2016 
 - 699-707 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1873-2933 
<br/><br/><label>Standard No.: </label>10.1016/j.clinbiochem.2016.02.013  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bias<br/>Blood Proteins--analysis<br/>Humans<br/>Laboratories--standards<br/>Laboratory Proficiency Testing--methods<br/>Quality Assurance, Health Care<br/>Quality Control<br/>Reference Standards