1. Forstner, J. F. Intestinal mucins in health and disease. Digestion 17, 234–263 (1978).
2. Gustafsson, B. E. The physiological importance of the colonic microflora. Scand. J. Gastroenterol. Suppl. 77, 117–131 (1982).
3. Lev, R. The mucin histochemistry of normal and neoplastic gastric mucosa. Lab. Invest. 14, 2080–2100 (1965).
4. Hukill, P. B. & Vidone, R. A. Histochemistry of mucus and other polysaccharides in tumors. I. Carcinoma of the bladder. Lab. Invest. 14, 1624–1635 (1965).
5. Goldenberg, D. M., Pegram, C. A. & Vazquez, J. J. Identification of a colon-specific antigen (CSA) in normal and neoplastic tissues. J. Immunol. 114, 1008–1013 (1975).