000 00496nam a2200217Ia 4500
000 00427nam a2200145 a 4500
008 220401s1992 ||||||||||||||||| || u
020 _a9772690330
050 _a614.415195
060 _a614.415195
082 _a614.415195
100 _aKnapp, R
245 0 _aClinical Epidemiology and Biostatistics
250 _a1
260 _aNMS
_c1992
300 _a435 p
365 _b80
_cOMR
650 _aEPIDEMIOLOGY
700 _aKnapp, R
942 _cLBK
999 _c8218
_d8218