1. The induction of germinal centers in germ-free chickens;Anderson;J. Pathol.,1973
2. The effect of antigen deprivation on thymus-dependent and thymus-independent lymphocytes in the small intestine of the mouse;Ferguson;Clin. Exp. Immunol,1972
3. Lymphoid tissue and serum gamma globulin in young germfree chickens;Thorbecke;J. Infect. Dis.,1957
4. The relation of antigen and virus localization to the development and growth of lymphoid germinal centers;Hanna,1969
5. Localization of antigen and immune complexes in lymphatic tissue, with special reference to germinal centers;Hanna,1971