Immunology. Contrasuppressor cells and oral tolerance.
D000818:Animals; D007108:Immune Tolerance; D051379:Mice; D009061:Mouth Mucosa / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*