Riegelman, Richard K. <br/><br/>
Studying a study and  testing a test: how to read the medical evidence 

 - 5th 
 - Philadelphia :  Lippincott Williams & Wilkins  2005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health Services-Quality<br/>Medicine-Information Sources<br/>Research-Health Services