KELSEY, Jennifer L. Thompson, Douglas W. Evans, Alfred S. <br/><br/>
Methods in observational epidemiology 
/[by] Jennifer L.Kelsey,W.Douglas Thompson,Alfred S.Evans 
 - New York  Oxford University  1986 
 - vi, 366 p. 
<br/><br/> Includes references & index 
<br/><br/><label>ISBN: </label>195036573 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>Dewey Class. No.: </label>614.4072  / KEL