00738cam a2200217 a 4500003000400000005001700004008004100021020001500062040002900077050002100106060001700127100002400144245010600168260004500274300003300319504005100352650002700403650001800430700002500448700004700473OSt20220404103705.0811207s1982 mdua b 001 0 eng  a0683032526 cALUPE UNIVERSITY COLLEGE10aRA652b.F55 1982 aWA 105 F614c1 aFletcher, Robert H.10aClinical epidemiology :bthe essentials /cRobert H. Fletcher, Suzanne W. Fletcher, Edward H. Wagner. aBaltimore :bWilliams & Wilkins,cc1982. axi, 223 p. :bill. ;c23 cm. aIncludes bibliographical references and index. 0aClinical epidemiology. 2aEpidemiology.1 aFletcher, Suzanne W.1 aWagner, Edward H.q(Edward Harris),d1940-