title: New experimental approaches.
mesh_terms: D000042:Absorption; D000906:Antibodies; D000917:Antibody Formation; D000918:Antibody Specificity; D001402:B-Lymphocytes / Q000276:immunology*; D001666:Binding Sites, Antibody; D002454:Cell Differentiation; D002462:Cell Membrane / Q000276:immunology; D000242:Cyclic AMP / Q000494:pharmacology; D006412:Hematopoietic Stem Cells / Q000276:immunology; D007125:Immunogenetics; D007075:Immunoglobulin M; D008214:Lymphocytes / Q000187:drug effects; D008221:Lymphoid Tissue / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000906:Antibodies; D007075:Immunoglobulin M; D000242:Cyclic AMP