title: Letter: Autoimmunity in childhood pulmonary alveolar proteinosis.
mesh_terms: D001323:Autoantibodies; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007070:Immunoglobulin A; D009130:Muscle, Smooth / Q000276:immunology*; D011649:Pulmonary Alveolar Proteinosis / Q000276:immunology*
chemical_list: D001323:Autoantibodies; D007070:Immunoglobulin A