1. Normal haematological values: sex differences in neutrophil count;Bain, B.J.; England, J.M.;Br Med J,1975
2. Leucopenia in negroes;Broun, G.O.; Herbig, F.K.; Hamilton, J.R.;N Engl J Med
3. Leucocytes and melanin pigmentation;Wassermann, H.P.;SA Med J
4. Genetic neutropenia in people of African origin;Shaper, A.G.; Lewis, P.;Lancet,1971
5. Pseudoneutropenia in American Negroes (letter);Karayalcin, G.; Rosner, F.; Sawitsky, A.;Lancet,1972