Imaginis.com. Computerized Tomography Imaging. Accessed April 1, 2004, at http://www.imaginis.com/ct-scan/how_ct.asp.
International Medical News Group. (2001). CT scan radiation. Family Practice News, 31 (6) 35.
Frush, D. (2003, Nov. 1). In planning CT dese reduction, one size does not fit all - Body size, imaging indication, and scanner engineering create complex formula for success. Dianostic Imaging, p. NA.
MayoClinic.com. (1998-2004). "Mayo Clinic Health Information." Mayo Foundation for Medical Education and Research.