000 00339cam a2200121 4500
001 0521540275
008 060821t2004 xxu||||| |||| 00| 0 eng d
020 _a0521540275
100 _aMayer, D
245 0 _aEssential evidence-based medicine
260 _aCambridge :
_bCambridge University Press,
_c2004
650 _aEvidence Based Health Care
999 _c42030
_d42030