REFERENCES
- Cantrell, W. & Elko, E. E. (1970). Experimental Parasitology, 28, 291–297.
- Eling, W. (1977). Bulletin of the World Health Organization, 55, 105–114.
- George, J. H., Stokes, E. F. & Wicker, D. J. (1966). Military Medicine, 131, 1217–1224.
- Green, T. J. & Kreier, J. P. (1978). Infection and Immunity, 19, 138–145.
- Holland, P., Holland, N. H. & Cohn, Z. A. (1972). Journal of Experimental Medicine, 135, 458–475.
- Huber, H. & Fudenberg, H. H. (1968). International Archives of Allergy and Applied Immunology, 34, 18–31.
- Richards, W. H. G. & Williams, S. G. (1973). Annals of Tropical Medicine and Parasitology, 67, 249–250.
- Roberts, D. W. & Weidanz, W. P. (1978). Infection and Immunity, 20, 728–731.
- Sheagren, J. N. & Tobie, J. E. (1970). Journal of Laboratory and Clinical Medicine, 75, 481–487.
- Zuckerman, A. & Weiss, D. W. (1973). Dynamic Aspects of Host Parasite Relationships. Vol. 1, pp. 79–115. New York: Academic Press.