title: Free radical theory of aging.
mesh_terms: D000368:Aged; D000375:Aging; D000818:Animals; D002625:Chemistry, Organic; D004285:Dogs; D005260:Female; D005609:Free Radicals; D006801:Humans; D008017:Life Expectancy; D008297:Male; D051379:Mice; D008875:Middle Aged; D055601:Organic Chemistry Phenomena; D014481:United States
chemical_list: D005609:Free Radicals