00353nam a2200109Ia 4500008004100000040001100041100001800052245010400070260004700174300001300221300000900234251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aJohn M. Grant 0aBritish Journal of Obstetrics & GynaecologybAn International Journal of Obstetrics and Gynaecology  cJuly, 1974bW. B. Saunders CompanyaLondon  aP. 1-637  bV. 6