00310nam a22001097a 4500082001300000100001700013245008900030250000800119260004700127300001000174654001600184  a618bGRE  aGreenhill,JP  aYearbook of obstetrics and gynecology 1974                                            aNil  aChicagobYearbook Medical Publishersc1974  a442p.  aGynaecology