Boyd, Mark F. <br/><br/>
Preventive Medicine/ 
by Mark F. Boyd 
 - 7th ed., rev. 
 - x, 591 pages:  ills., b&w photog., maps  24cm 
<br/><br/>Includes bibliographical references and an index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine, Preventive
<br/><br/><label>National Library of Medicine Call No.: </label>WA108