[ RadSafe ] Radon in the Brain

[J. Marshall Reber]

According to

http://healthandenergy.com/radon_in_the_brain.htm


> Interestingly enough, the geographic distribution of Parkinson’s  
> disease mortality is considerably higher in states with a greater  
> radon potential, according to research by D.J. Lansak of the  
> University of Kentucky and published in the Journal of Neurological  
> Sciences.
>

Does anyone know of other studies that would agree with this statement?