title: Direct evidence for 1-electron reduction of molecular oxygen by an enzyme system.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D006861:Hydrogen Peroxide; D006863:Hydrogen-Ion Concentration; D010100:Oxygen; D014969:Xanthine Oxidase
chemical_list: D005609:Free Radicals; D006861:Hydrogen Peroxide; D014969:Xanthine Oxidase; D010100:Oxygen