000 00361cam a2200121 a 4500
020 _a072161308X
050 1 0 _aMED RA652.2.M3
_bF45
100 1 _aFeinstein, Alvan R.,
245 1 0 _aClinical epidemiology :the architecture of clinical research
260 _aPhiladelphia :
_bW.B. Saunders Co.,
_c1985.
300 _axii, 812pg. :
_bill. includes index ;
942 _cBK
999 _c9905
_d9905