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

 - 5th ed. 
<br/><br/><label>ISBN: </label>9780781745765 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evidence-Based Medicine/methods<br/>Biometry.<br/>Epidemiologic Methods