[1215] Hagen, T. M., Liu J., Lykkesfeldt J., Wehr C. M., Ingersoll R. T., Vinarsky V., et al. (2002).  Feeding acetyl-l-carnitine and lipoic acid to old rats significantly improves metabolic function while decreasing oxidative stress. Proceedings of the National Academy of Sciences of the United States of America. 99(4), 1870 - 1875.