00337nam a2200157Ia 4500008004100000041000800041082001400049100001300063245002300076250000900099260001500108300001000123650001600133906000900149999002100158240830s1997 xx 000 0 und d aeng a618.1 WIL aWILLIAMS aWILLIAMS OBSETRICS a20TH bN.D.c1997 a1448p aGYANECOLOGY aN.D. c1198265d1198265