Utilization of imaging in pregnant patients: 10-year review of 5270 examinations in 3285 patients--1997-2006.
Lazarus E, Debenedectis C, North D, Spencer PK, Mayo-Smith WW. Utilization of imaging in pregnant patients: 10-year review of 5270 examinations in 3285 patients--1997-2006. Radiology. 2009 May; 251(2):517-24.