1. Leukopenia in Negro workmen;Forbes;Am J Med Sci,1941
2. Pseudo-neutropenia in Negroes: a normal phenomenon;Karayalcin;N Y State J Med,1972
3. Leukocyte counts in 7,739 healthy black persons: effects of age and sex;Rana;Ann Clin Lab Sci,1985
4. The leucocyte picture in white, Bantu, coloured and Indian school children of 6-15 years as observed during the Pretoria nutrition status surveys of 1962-1965;Neser;S Afr Med J,1968
5. Leucopenia in West Indians and Africans;Rippey;Lancet,1967