4 0

Designing clinical research : an epidemiologic approach / 6 6 by Stephen B. Hulley ... [et al.]. - 2nd ed. - - xv, 336 p. : ill. 26 cm. - - - - - . - . - 0 . - . - 0 .



Includes bibliographical references and index.



5

















5





0781722187;9780781722186

2 = =







42418

2




2 --0------


6 --0-- 2 --------



0 2 --


--20------





Clinical trials;Medicine;Epidemiology;Epidemiologic Methods.;Research Design. ----Technique.;Research;Methodology.;Research;Methodology.----20--


--------20--


----2

R853.C55 / D47 20012

610/.72 / 221

/

WA 950 / D457 2001