1. See Kabat, E. A., “Blood Group Substances” (Academic Press, New York, 1956). Morgan, W. T. J., “Scientific Basis of Medicine”, 4, 92 (Athlone Press, London, 1956).
2. Gibbons, R. A., Morgan, W. T. J., and Gibbons, M., Biochem. J., 60, 428 (1955). Leskowitz, S., and Kabat, E. A., J. Amer. Chem. Soc., 76, 4887 (1954).
3. Watkins, W. M., and Morgan, W. T. J., Nature, 169, 825 (1952).
4. Morgan, W. T. J., and Watkins, W. M., Brit. J. Exp. Path., 34, 94 (1953).
5. Kabat, E. A., and Leskowitz, S., J. Amer. Chem. Soc., 77, 5159 (1955).