CT scan rules developed to cut kids’ exposure to unnecessary radiation

One CT scan delivers 300 to 600 times the radiation of a single chest x-ray, and their use after minor head injuries has surged, researchers say
Feb 9, 2010
Carly Weeks
Globe and Mail
http://www.theglobeandmail.com/life/health/ct-scan-rules-developed-to-cut-kids-exposure-to-unnecessary-radiation/article1461217/