title: Oxygen free radicals and tissue damage: chairman's introduction.
mesh_terms: D005609:Free Radicals; D006861:Hydrogen Peroxide / Q000633:toxicity*; D006878:Hydroxides / Q000633:toxicity*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000633:toxicity*; D013481:Superoxides / Q000633:toxicity*
chemical_list: D005609:Free Radicals; D006878:Hydroxides; D013481:Superoxides; D006861:Hydrogen Peroxide; D010100:Oxygen