Development and function of subclasses of T cells.
D000367:Age Factors; D000917:Antibody Formation; D002454:Cell Differentiation; D000939:Epitopes; D008954:Models, Biological; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000166:cytology* / Q000276:immunology
D000939:Epitopes