000 00345nam a2200121Ia 4500
008 220729s2019 xx 000 0 und d
041 _aeng
100 _aNan H Troiano Patricia M Witcher Suzanne Mcmurtry Baird
245 _aHigh risk and critical care obstetrics
250 _a4
260 _aPhiladelphia
_bWolter Kluwer
_c2019
300 _a426
999 _c138524
_d138524