1. Immunity to Malaria;Cohen,1979
2. Immunity to Malaria;Playfair;Br Med Bull,1982
3. Disease and evolution;Haldane;La Ricerca Scientific,1949
4. Protection afforded by sickle-cell trait against subtertain malarial infection;Allison;Br Med J,1954
5. Malaria and Human polymorphisms;Livingstone;Ann Rev Genet,1971