Familial ALS-superoxide dismutases associate with mitochondria and shift their redox potentials, Ferri, A., Cozzolino M., Crosio C., Nencini M., Casciati Arianna, Gralla E.B., Rotilio G., Valentine J.S., and Carrì M.T. , Proceedings of the National Academy of Sciences of the United States of America, Volume 103, Number 37, p.13860-13865, (2006)