Designing clinical research : an epidemiologic approach /
by Stephen B. Hulley ... [et al.].
- 2nd ed.
- Philadelphia : Lippincott Williams & Wilkins, c2001.
- xv, 336 p. : ill. ; 26 cm.
Includes bibliographical references and index.
0781722187
00042418
Clinical trials--Technique. Medicine--Research--Methodology. Epidemiology--Research--Methodology. Epidemiologic Methods. Research Design.