Huge radiation risk: The hospital

Huge radiation risk: The hospital
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/06/20/BU4T1DUK3A.DTL&type=health

"We fret about airport scanners, power lines, cell phones and even microwaves. It's true that we get too much radiation. But it's not from those sources - it's from too many medical tests."