Merrill, Ray M. <br/><br/>
Introduction to epidemiology / 
Ray M. Merrill 
 - 7th ed. 
 - Burlington, Mass. :  Jones & Bartlett Learning,  2017 
 - xix, 339 p. :  ill.  ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781284094350 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology--Study and teaching<br/>Epidemiology