title: The purine DNA base cation and anion radicals: an e.s.r. study.
mesh_terms: D000225:Adenine; D000838:Anions; D004247:DNA; D004578:Electron Spin Resonance Spectroscopy; D006147:Guanine; D007477:Ions; D010782:Photolysis
chemical_list: D000838:Anions; D007477:Ions; D006147:Guanine; D004247:DNA; D000225:Adenine