Clinical epidemiology :  a basic science for clinical medicine / 
David L. Sackett ... [et al.]. 
 - 2nd ed. 
 - Boston :  Little, Brown,  c1991. 
 - xvii, 441 p. :  ill. 
<br/><br/> Rev. ed. of: Clinical epidemiology / David L. Sackett, R. Brian Haynes, Peter Tugwell. 1st ed. c1985.;Five critical appraisal cards in pocket inside back cover. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780316765992 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods
<br/><br/><label>National Library of Medicine Call No.: </label>WA 950  / .C55 1991