000 00332nam a2200145Ia 4500
008 220613s9999||||xx |||||||||||||| ||und||
020 _a0735-1631
100 _axxx
245 0 _aAmerican Journal of Perinatology
250 _a32(1-7) Jan-Jun 2015
260 _bThieme
300 _a711
650 _aObs & Gyane
942 _cSURG
999 _c14677
_d14677