Alfawwaz, R.A. and Alhamdan, A.A. (2006) “The Modulatory Effect of N-Acetyl Cysteine Supplementation on Hepatic Glutathione Concentration and Lipid Peroxidation Status in Old Rats Fed a Low-Protein Diet”, Pakistan Journal of Nutrition, 5(2), pp. 156–165. doi:10.3923/pjn.2006.156.165.