Elwood, J. Mark. <br/><br/>
Critical appraisal of epidemiological studies and clinical trials / 
J. Mark Elwood. 
 - 2nd ed. 
 - Oxford ;  New York :  Oxford University Press,  1998. 
 - x, 448 p. :  ill. ;  24 cm. 
 - Oxford medical publications .
<br/><br/> Rev. ed. of: Causal relationships in medicine / J. Mark Elwood. 1988. 
<br/><br/>Includes bibliographical references (p. 359-371) and index. 
<br/><br/><label>ISBN: </label>0192627457 (hbk) 0192627449 (pbk.) 
<br/><br/><label>LCCN: </label>97022473  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology--Research--Methodology.<br/>Clinical trials.<br/>Epidemiology--Research--Evaluation.<br/>Clinical trials--Evaluation.<br/>Diseases--Causes and theories of causation.<br/>Epidemiologic Methods.<br/>Epidemiology.<br/>Clinical Trials.
<br/><br/><label>LC Class. No.: </label>RA652.4  / .E483 1998 
<br/><br/><label>Dewey Class. No.: </label>614.4 ELW 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 950 E52ca 1998