title: Pneumonitis. Deficient suppressor T cell function in avian antigen induced pneumonitis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000542:Alveolitis, Extrinsic Allergic / Q000276:immunology*; D000941:Antigens / Q000276:immunology; D001716:Bird Fancier's Lung / Q000276:immunology*; D005260:Female; D006801:Humans; D008213:Lymphocyte Activation; D008297:Male; D008875:Middle Aged; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
chemical_list: D000941:Antigens