Thank you, Mr. Chairman.
Dr. Priest, I want to ask you, first of all, about a section in the report that talks about the experience of uranium miners and the fact that they have a high incidence of lung cancer. The conclusion drawn by the authors of the report is that the major contributing factor in this cohort is radon and not uranium. I'm sorry if this sounds like a stupid question, but I'm not a scientist. Can you explain the relationship between radon and uranium?