title: Comments about a 'new' TE gas.
mesh_terms: D002245:Carbon Dioxide; D006801:Humans; D008697:Methane; D009502:Neutrons; D009584:Nitrogen; D011878:Radiotherapy / Q000379:methods*; D011879:Radiotherapy Dosage
chemical_list: D002245:Carbon Dioxide; D009584:Nitrogen; D008697:Methane