Sackett David L., Haynes R. Brian, Tugwell Peter <br/><br/>
Clinical epidemiology   

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 - Boston  Little, Brown  1985 
 - 370 p.  24 cm. 
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<br/><br/>  
<br/><br/>  Epidemiology 
<br/><br/><label>ISBN: </label>0316765953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>Dewey Class. No.: </label>WA105  / SAC