000 00459cam a22001694a 4500
020 _a0721690793
020 _a9780721690797
050 0 0 _aMED RA421
_bJ4 2001
100 1 _aJekel, James F.
245 1 0 _aEpidemiology, biostatistics, and preventive medicine
250 _a2nd ed.
260 _aPhiladelphia :
_bW.B. Saunders,
_c2001.
300 _aix, 417 p. :
_bill. (some col.) ;
700 1 _aKatz, David L.,
700 1 _aElmore, Joann G.
942 _cBK
999 _c7393
_d7393