000 00485 a2200169 4500
008 120528t xxu||||| |||| 00| 0 eng d
010 _a2007030111
020 _a9781416040026
090 _c14883
_d14882
100 _aGordis, Leon
_93378
245 _aEpidemiology
250 _a4th ed.
260 _bSaunders Elsevier,
_c2009.
_aPhiladelphia:
300 _axv, 375p.
_bill.
650 _aEpidemiology.
_vEpidemiologic Methods.
_93379
942 _cBK
_hRA651 G58 2009
999 _c14883
_d14882