Bobbins, John, 1987. A Diet for a New America, Stillpoint Publishing.

www.dhn.csiro-au/crctissue.html

Xian, C., 1995. Degradation of IGF-I in the Adult Rat Gastrointestinal Tract is limited by a Specific Antiserum of the Dietary Protein Casein. Journal of Endocrinology, 146, 2, 1 August, 215; Thornburg, W. and others, 1984. Gastrointestinal absorption of epidermal growth factor in suckling rats. American Journal of Physiology, 246, G80-G85.