Changes

''<blockquote> "Radon is the most important cause of lung cancer after smoking. It is estimated that radon causes between 3–14% of all lung cancers in a country, depending on the average radon level and the smoking prevalence in a country.” </blockquote>

Lung Cancer: [[ICRP Publication 115|Publication 115]]<ref name="Pub115">[[ICRP Publication 115]] Lung Cancer Risk from Radon and Progeny and Statement on Radon Ann ICRP 40(1) 2010.</ref> paragraph 55