000 00380nam a2200157Ia 4500
008 241014s9999||||xx |||||||||||||| ||und||
020 _a0-683-03269-0
060 _aWA950 F 1996
100 _aFletcher,Robert H
245 0 _aClinical Epidemiology : the essentials
250 _a3
260 _bLipponcott
_c1996
300 _a276
650 _aEpidemiology
942 _bION
_cBK
999 _c17815
_d17815