Dr. Gary Sayed is an Associate Professor of Diagnostic Imaging at Thomas Jefferson University, Philadelphia, PA.
Editor's Note: in defense of their position in Chapter 11, Drs. Dendy and Heaton wish to note that, on pages 294–295, they make reference to alternative models for long-term risk at low doses and state therein that: “there is a body of opinion that considers the potential harmful effects of low doses of radiation are overstated,” and “any extrapolation from observed data to lower doses is bound to be a model,” and “resolution of this problem would require a much better understanding of the mechanism of carcinogenesis.”
