title: Decreased serum immunoglobulin A level in a patient with bronchiectasis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001987:Bronchiectasis / Q000276:immunology*; D002648:Child; D005260:Female; D006801:Humans; D017098:IgA Deficiency; D008297:Male; D008875:Middle Aged