9Botham J W, Manning M J. The histogenesis of the lymphoid organs in the carp Cyprinus carpioL, and the ontogenetic development of allograft reactivity [J]. Fish Biol, 1981,19: 403-414.
10Ellis A E. Ontogeny of the immune response in Sahno salar: Histogenesis of lymphoid organs and appearance of membrane immunoglobulin and mixed leucocyte reactivity [A]. In: Developmental Immunobiology, Solomon J B, Horton J D. eds. North-Holland, Elsevier, 1977: 225-231.
