000 00471cam a2200181 4500
001 9780521009393
008 111109t2002 xxu||||| |||| 00| 0 eng d
020 _a9780521009393
080 _a614.4
100 _aSilman, Alan J
245 0 _aEpidemiological studies : a practical guide
250 _a2nd
260 _aCambridge :
_bCambridge University Press
_c2002
690 _aEpidemiology
_92272
700 _aMacfarlane, Gary J
942 _cBKSTD
999 _c4912
_d4912