1. Albert, Z., Rzucidlo, Z., and Starzyk, H. Acta Histochem., 37, 34–39 (1970).
2. Alpert, E., Uriel, J., and deNechaud, B. TV. Engl. J. Med., 278, 984–986 (1968).
3. Cameron, R., Kellen, J., Malkin, A., and Farber, E. Cancer Res., 38, 823–829 (1978).
4. Fiala, S., Fiala, A. E., and Dixon, B. J. Natl. Cancer Inst., 48, 1393–1401 (1972).
5. Fiala, S. and Fiala, E. S. J. Natl. Cancer Inst., 51, 151–158 (1973).