Haynes R Brian. <br/><br/>
Clinical epidemiology  how to do clinical practice research. 

 - 3rd 
 - Philadelphia  Lippincott William & Wilkins  2006 
 - 496 p.  27 cm. 
 -   .
<br/><br/>  David L Sackett,Gordon H Guyatt and Peter Tugwell jt.authors. 
<br/><br/>  Epidemiology,Clinical, Medical Research-Epidemiology 
<br/><br/><label>ISBN: </label>0781745241 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical Research-Epidemiology<br/>Epidemiology,Clinical
<br/><br/><label>Dewey Class. No.: </label>WA105  / HAY