1. Batchelor, J. R., The mechanisms and significance of immunological enhancement. Guy’s Hosp., Rep.
112, 345–359 (1963).
2. Billingham, R. E., and Sparrow, E. M., The effect of prior intravenous injections of dissociated epidermal cells and blood on the survival of skin homografts in rabbits. J. Embryol, exp. Morph.
3, 265 (1955).
3. Bride, J., Recherches sur le cancer expérimental des souris. Ann. Inst. Pasteur
21, 760 (1907).
4. Casey, A. E., A species limitation of an enhancing material derived from a mammalian tumor. Proc. Soc. exp. Biol. (N.Y.)
30, 674 (1933).
5. Casey, A. E., Specificity of enhancing materials for mammalian tumors. Proc. Soc. exp. Biol. (N.Y.)
31, 663 (1934a).