000 00699cam a2200241 4500
001 0198529554
008 071231t2007 xxu||||| |||| 00| 0 eng d
020 _a0198529554
100 _aElwood, J. Mark
245 0 _aCritical appraisal of epidemiological studies and clinical trials
250 _a3rd ed.
260 _aOxford :
_bOxford University Press
_c2007
300 _a (pbk)
490 _aOxford medical publications
650 _aMedical Statistics
650 _aEpidemiology
_92272
650 _aMedicine-Information Sources
650 _aResearch-Health Services
690 _aclinical trials
690 _amedical statistics
690 _aepidemiology
_92272
942 _cBKSTD
999 _c24078
_d24078