00366nam a22001457a 4500020001500000082001800015100001600033245006700049250001200116260003300128300001300161654001400174654001600188700001600204  a8172860676  a616.0757bBIS  aBisset, Ral  aDifferential diagnosis in obstetric and gynecologic ultrasound  aInd.Ed.  aBangalorebPrism Booksc1997  a1-452 p.  aRadiology  aGynaecology  aBisset, Ral