References
- Bolin T.D., Crane G.G., Davis A.E. Lactose intolerance in various ethnic groups in south-east Asia. Australasian Annals of Medicine 1968; 17: 300–306
- Cook G.C. Some observations on racial lactase deficiency. Proceedings of the Royal Society of Medicine 1968; 61: 1102–1104
- Cook G.C. Lactase deficiency: a probable ethnological marker in East Africa. Man, N.S. 1969; 4: 265–267
- Cook G.C. Incidence and clinical features of specific hypolactasia in adult man. Intestinal enzyme deficiences and their nutritional implications, B. Borgström, A. Dahlqvist, L. Hambraeus. Almqvist and Wiksell, Stockholm 1973; 52–73
- Cook G.C. Did persistence of intestinal lactase into adult life originate on the Arabian peninsula?. Man, N.S. 1978; 13: 418–427
- Cook G.C., Al-Torki M.T. High intestinal lactase concentrations in adult Arabs in Saudi Arabia. British Medical Journal 1975; 3: 135–136
- Cook G.C., Kajubi S.K. Tribal incidence of lactase deficiency in Uganda. Lancet 1966; 1: 725–730
- Garn S.M. Human Races2nd edition. C. C. Thomas, Springfield, Illinois 1965; 130–132
- Harrison G.A., Weiner J.S., Tanner J.M., Barnicot N.A. Human Biology. Clarendon Press, Oxford 1964; 13–13
- Laycock D.C., Wurm S.A. Papua New Guinea Resource Atlas, E. Ford. Jacaranda Press, Australia 1974; 52–53, In
- Mourant A.E. The hereditary blood factors of the peoples of New Guinea and the surrounding regions. Philosophical Transactions of the Royal Society of London B 1974; 268: 251–255