00295nam a22001217a 4500082001300000100001700013245005200030250000800082260003700090300001000127654001600137700002000153  a618bPIT  aPitkin,Roy,M  aThe year book of obstetrics and gynecology 1983  aNil  aChicagobYear Book Medicalc1983  a474p.  aGynaecology  aZlatnik,Frank J