Cooper, M D Studies on the nature of the abnormality of B cell differentiation in avian lymphoid leukosis: production of heterogeneous IgM by tumor cells. [electronic resource] - Journal of immunology (Baltimore, Md. : 1950) Oct 1974 - 1210-22 p. digital Publication Type: Journal Article ISSN: 0022-1767 Subjects--Topical Terms: AnimalsAntibody FormationAvian Leukosis--immunologyB-Lymphocytes--cytologyBursa of Fabricius--immunologyCell DifferentiationChickensEpitopesFluorescent Antibody TechniqueImmunoglobulin A--analysisImmunoglobulin FragmentsImmunoglobulin G--analysisImmunoglobulin M--analysisLiver--immunologySpleen--immunology