Serum alpha-1-antitrypsin deficiency in Maine young people.
D000293:Adolescent; D000367:Age Factors; D001796:Blood Protein Disorders / Q000453:epidemiology*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000453:epidemiology* / Q000276:immunology; D008281:Maine; D019896:alpha 1-Antitrypsin Deficiency