title: Singlet oxygen and biological systems.
mesh_terms: D001669:Biochemical Phenomena; D001671:Biochemistry; D002273:Carcinogens / Q000494:pharmacology; D002627:Chemistry, Physical / Q000295:instrumentation; D004583:Electrons; D006859:Hydrogen; D008954:Models, Biological; D009584:Nitrogen; D010084:Oxidation-Reduction; D010100:Oxygen / Q000494:pharmacology; D010777:Photochemistry; D013455:Sulfur
chemical_list: D002273:Carcinogens; D013455:Sulfur; D006859:Hydrogen; D009584:Nitrogen; D010100:Oxygen