{"source":"book","style":"apa","contributors": [{"function":"author","last":"D'Addario","first":"V","middle":","} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Donald School basic textbook of ultrasound in obstetrics and Gynecology","year":"2015"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"970596013","isbn":"9789351523376 9351523373"}