1. Blythman, H. E. & B. H. Waksman: Effect of irradiation and appendicostomy on appendix structure and responses of appendix cells to mitogens. J. Immunol. 1973, 111, 171–182.
2. Bockman, D. E. & M. D. Cooper: Pinocytosis by epithelium associated with lymphoid follicles in the bursa of Fabricius, appendix and Peyer’s patches. An electron microscopic study. Amer. J. Anat. 1973, 136, 455–478.
3. Carter, P. B. & F. M. Collins: The route of enteric infection in normal mice. J. exp. Med. 1974, 139, 1189–1203.
4. Cebra, J. J., R. Kamat, P. Gearhart, S. M. Robertson & J. Tseng: The secretory IgA system of the gut. In: Immunology of the gut. Ciba Foundation Symposium 46. Excerpta Medica, Amsterdam, Oxford, New York 1979, p. 5–28.
5. Cooper, G. N., J. C. Thonard, R. L. Crosby & M. H. Dalbow: Immunological responses in rats following antigenic stimulation of Peyer’s patches. II. Histological changes in germ-free animals. Aust. J. exp. Biol. med. Sci. 1968, 46, 407–414.