title: Phylogeny of the emergence of T-B collaboration in humoral immunity.
mesh_terms: D000663:Amphibians; D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D001717:Birds; D002352:Carrier Proteins / Q000276:immunology; D002454:Cell Differentiation; D005399:Fishes; D007109:Immunity; D008213:Lymphocyte Activation; D008211:Lymphocyte Cooperation; D008934:Mitogens / Q000494:pharmacology; D010802:Phylogeny; D012104:Reptiles; D013601:T-Lymphocytes / Q000276:immunology*; D013950:Thymus Gland / Q000601:surgery
chemical_list: D002352:Carrier Proteins; D008934:Mitogens