00386nam a22001337a 4500008004100000020001800041050001600059100002000075245005500095250001200150260004800162300001600210650002600226250131b        |||||||| |||| 00| 0 eng d  a9781284280388  aRA651b.M47  aMerrill, Ray M.  aIntroduction to Epidemiology / by cRay M. Merrill  a9th ed.  aBurlingtonbJones & Bartlett Learningc2025  axvii, 363p.  aEpidemiologic methods