Clinical epidemiology : the essentials /
Clinical epidemiology : the essentials / Robert H. Fletcher, Suzanne W. Fletcher, Edward H. Wagner - 3rd ed. - Philadelphia, Pa. : Lippincott, c1996 - 276 p. : ill.
Includes bibliographical references and index
0683032690
CLINICAL EPIDEMIOLOGY
EPIDEMIOLOGIC METHODS
RA652.2 .C55 / F537C 1996