Sackett,David L. <br/><br/>
Clinical epidemiology  a basic science for clinical medicine 
R. Brian Haynes and Peter Tugwell 
 - Toronto  Little, Brown and company  1985 
 - xii, 370 p. 
<br/><br/><label>ISBN: </label>0316765953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical epidemiology
<br/><br/><label>LC Class. No.: </label>RA652  / .S23 1985