radiation en route to Mars

I question the ratio of boys to girls, reference please.

According to this article:

http://www.findarticles.com/cf_dls/m0UBT/8_15/70734907/p1/article.jhtm
l

"Aircrew Exposure to Cosmic Radiation Involves only Slight Cancer
Risk."

"The exposure to cosmic radiation from a year of flying is roughly
equivalent to receiving a barium enema"

> I am inclined to agree with your position, but do you have a
reference for the 3:1 girl/boy for pilots? Jay Huebner