1. Geographical incidence of oesophageal cancer in West Kenya;Ahmed, N.;E. Afr. med. J,1966
2. Oesophageal cancer;med. J, Brit,1966
3. Esophageal cancer among Bantu in the;Burrell, R.J.W.,1962
4. Esophageal cancer in the Bantu of the Transkei associated with mineral deficiency in garden plants;Roach, W.A.; Shadwell, A.;Ibid,1966
5. Prevention of Cancer: Pointers from Epidemiology;Doll, R.,1967