1. Alter, A. A., Lee, S. L., Pourfar, M., Dobkin, G.: Leucocyte alkaline phosphatase in mongolism: A possible chromosome marker. J. clin. Invest.41, 1341 (1962).
2. Anderson, J. W., Pearson, G., Valdmanis, A., Mann, J. D.: Duplication of the Y chromosome during myeloblastic crisis of chronic myelocytic leukemia. Ann. Génét.11, 135 (1968).
3. Athens, J. W.: Granulocyte kinetics in health and disease. Nat. Cancer Inst. Monogr.30, 135 (1969).
4. Atkin, N. B., Taylor, M. C.: A case of chronic myeloid leukemia with a 45 chromosome cell-line in the blood. Cytogenetics1, 97 (1962).
5. Atkins, L., Santesson, B.: Chromosome DNA synthesis in cultured normal human female skin cells. Hereditas (Lund)55, 39 (1966).