00259nam a2200097Ia 4500008004100000040001100041245004100052260004600093300001300139300000900152251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aObstetrical and Gynecological Survey  c1959bThe Willams &wilkins companyaU.S.A  aP. 1-457  bV.51