title: Studies on the nature of the abnormality of B cell differentiation in avian lymphoid leukosis: production of heterogeneous IgM by tumor cells.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001353:Avian Leukosis / Q000276:immunology* / Q000473:pathology; D001402:B-Lymphocytes / Q000166:cytology / Q000276:immunology*; D002060:Bursa of Fabricius / Q000276:immunology; D002454:Cell Differentiation; D002645:Chickens; D000939:Epitopes; D005455:Fluorescent Antibody Technique; D007070:Immunoglobulin A / Q000032:analysis; D007128:Immunoglobulin Fragments; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis / Q000096:biosynthesis*; D008099:Liver / Q000276:immunology / Q000648:ultrastructure; D013154:Spleen / Q000276:immunology
chemical_list: D000939:Epitopes; D007070:Immunoglobulin A; D007128:Immunoglobulin Fragments; D007074:Immunoglobulin G; D007075:Immunoglobulin M