Aliahmat, N. S.; Noor, M. R. M.; Yusof, W. J. W.; Makpol, S.; Ngah, W. Z. W.; Yusof, Y. A. M. Antioxidant Enzyme Activity and Malondialdehyde Levels Can Be Modulated by Piper Betle, Tocotrienol Rich Fraction and Chlorella Vulgaris in Aging C57BL 6 Mice . Clinics 2012, 67 (12), 1447-1454. https://doi.org/10.6061/clinics/2012(12)16.