Chris: I hope you will consider this book. I believe that "laypeople" can understand what the author is saying. Kondo, S. Health effects of low-level radiation. Medical Physics Publishing, Madison WI; 1993 ISBN 0-944838-43-X, 211 pp. $25.00 Best wishes, -- Wade mailto:hwade@triax.com H.Wade Patterson 1116 Linda Lane Lakeview OR 97630 ph 541 947-4974