000 00326cam a2200121 4500
050 0 0 _aMED RG136
_bD28
100 1 _aDavis, Hugh J.
245 1 0 _aIntrauterine devices for contraception
260 _aBaltimore
_bWilliams & Wilkins Co.
_c1971
300 _axii, 210 p.
_bill.
650 0 _aIntrauterine contraceptives
942 _cBK
999 _c13251
_d13251