000 00287nam a2200121Ia 4500
008 220729s2019 xx 000 0 und d
041 _aeng
100 _aRobert Resnik
245 _aCreasy & Resniks maternal fetal medicine
250 _a8
260 _bElsevier
_c2019
300 _a1388
999 _c139015
_d139015