000 00334nam a2200145Ia 4500
008 240112s2017 xx 000 0 und d
022 _a8898545
041 _aeng
082 _a618.2
100 _aNICHALSEN W.
245 _aOBSTETRICS AND GYNECOLOGY CLINICS
260 _bELSEVIER
_c2017
300 _a142-320
_c2
440 _v44
999 _c1145381
_d1145381