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020 _a0195135547
082 _a6144ROT
100 _aRothman,KennethJ
245 _aEpidemiology : an introduction / Kenneth J. Rothman.
260 _aNewYork,NY:OxfordUniversityPress,2002
300 _aviii,223p:ill;24cm
650 _aEpidemiology Epidemiology EpidemiologicMethods
999 _c26710
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952 _w2012-09-11
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