1. Chesterman, F. C.: Intracranial heterotransplantation of human tumours. Brit. J. Cancer 9, 51 (1955).
2. Eichwald, E. J., O. N. Rambo, and J. Henry: Immunity to tumors transplanted in the brain of heterologous hosts. Amer. J. Path. 28, 557 (1952).
3. Goldenberg, D. M., S. Witte, and H. Götz: In Vorbereitung.
4. Green, H. N., and H. J. Whiteley: Cortisone and tumour growth. Brit. med. J. 1952 II a, 538.
5. Greene, H. S. N.: The transplantation of tumors to the brains of heterologus species. Cancer Res. 11, 529 (1951).