00682cam a2200217 i 4500003000400000005001700004008004100021020003200062040001100094050002200105100003400127245007000161250001200231260005000243300003400293500005100327650001800378650002700396700001800423700002300441OSt20200723064603.0130624s2014    paua     b    001 0 eng    a9781455737338 cKsh 3,990/=  aLCcLC00aRA 651b.G6  20141 aGordis, Leon,d1934-eauthor.10aEpidemiology /cLeon Gordis,  Professor Emeritus, Johns Hopkins .  a5th ed.  aPhiladelphia, PA :bElsevier/Saunders,c2014.  axv, 392p. :bill.col.c26 cm.  aIncludes bibliographical references and index.12aEpidemiology.22aEpidemiologic Methods.  aHopkins, John  aProfesser Emeritus