Theories of biological aging.
D000375:Aging; D000818:Animals; D001483:Base Sequence; D002875:Chromosomes / Q000502:physiology; D004247:DNA / Q000235:genetics; D005609:Free Radicals; D005796:Genes; D006801:Humans; D007109:Immunity; D008285:Major Histocompatibility Complex; D051379:Mice; D008954:Models, Biological; D009154:Mutation; D009490:Neurosecretory Systems / Q000502:physiology
D005609:Free Radicals; D004247:DNA