1. J. Ill in East London 1979–81;Cullinan,1983
2. The severe measles of West Africa;Morley;Proc. R. Soc. Med.,1964
3. A historical, epidemiological and aetiological study of measles;Brincker;Proc. R. Soc. Med.,1938
4. Differences in rate of uptake in immunisation amongst ethnic groups;Baker;Br. Med. J.,1984
5. World Health Organization. Viral Respiratory Diseases, WHO Technical Report Series No. 642, WHO, Geneva (1980)