1. Immunological dichotomy in the larval spleen;Brown;Immunol.,1976
2. Phylogenetic emergence of lymphoid tissues and cells;Cohen,1977
3. Some aspects of the histogenesis of the amphibian lymphomyeloid system and its role in immunity;Cooper,1967
4. Immunity mechanisms;Cooper,1976
5. The anuran amphibian spleen. An evolutionary model for terrestrial vertebrates;Cooper,1976