title: Controls in the study of lung cellular immune defenses.
mesh_terms: D006801:Humans; D007111:Immunity, Cellular; D008264:Macrophages / Q000276:immunology; D009504:Neutrophils / Q000276:immunology; D010587:Phagocytosis; D011650:Pulmonary Alveoli / Q000276:immunology; D001261:Pulmonary Atelectasis / Q000276:immunology*