title: Overview: biological sources of O2-.
mesh_terms: D000818:Animals; D003576:Electron Transport Complex IV / Q000378:metabolism; D006801:Humans; D009504:Neutrophils / Q000502:physiology; D010084:Oxidation-Reduction; D010100:Oxygen / Q000378:metabolism / Q000633:toxicity; D010587:Phagocytosis; D013482:Superoxide Dismutase / Q000378:metabolism*; D013481:Superoxides / Q000378:metabolism*
chemical_list: D013481:Superoxides; D013482:Superoxide Dismutase; D003576:Electron Transport Complex IV; D010100:Oxygen