Natural radioactivity of drinking water in Finland.
D005387:Finland; D006801:Humans; D011829:Radiation Dosage; D011883:Radium / Q000032:analysis*; D011886:Radon / Q000032:analysis*; D014501:Uranium / Q000032:analysis; D014881:Water Supply / Q000032:analysis*
D014501:Uranium; D011886:Radon; D011883:Radium