000 00284nam a2200097Ia 4500
008 220729s1986 xx 000 0 und d
041 _aeng
100 _aPitkin R M
245 _a1986 the year book of obstetrics and gynecology
260 _aLondon
_bYear Book Medical Publisher Inc
_c1986
999 _c127289
_d127289