title: EPA guideline for indoor radon levels evokes response from nuclear medicine.
mesh_terms: D006798:Housing / Q000592:standards*; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D009381:Neoplasms, Radiation-Induced / Q000209:etiology*; D011886:Radon / Q000009:adverse effects*; D012306:Risk; D014481:United States
chemical_list: D011886:Radon