Title	Authors	Journal
	Superoxide dismutase: correlation with life-span and specific metabolic rate in primate species.	J M Tolmasoff, T Ono, and R G Cutler	Proc Natl Acad Sci U S A. 1980 May; 77(5): 2777-2781.
	Leanness, Extended Lifespan & IGF-I Receptor Mutations in Mice: Fascinating Observations	Allen W. Root, MD	Growth, Genetics & Hormones 19(2), 2003
	IGF-I receptor regulates lifespan and resistance to oxidative stress in mice.	Holzenberger M, et al.	Nature 2003;421:182-186.