000 00437nam a22001457a 4500
020 _a9780521354592
050 _aMED RG157
_bS98
245 _aSafety requirement for contraceptive steroids
260 _aNew York
_bCambridge University Press
_c1989
300 _axv, 467 p.
_bill;
650 _aOral contraceptives- side effects
650 _aOral contraceptives - toxicology
650 _aSteroid hormonies - side effects
942 _cBK
999 _c12957
_d12957