title: alpha 1-antitrypsin and its deficiency states.
mesh_terms: D000293:Adolescent; D000483:Alleles; D002648:Child; D002675:Child, Preschool; D005787:Gene Frequency; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008099:Liver / Q000473:pathology / Q000648:ultrastructure; D008107:Liver Diseases / Q000209:etiology; D008970:Molecular Weight; D010641:Phenotype; D011110:Polymorphism, Genetic; D011656:Pulmonary Emphysema / Q000209:etiology; D000515:alpha 1-Antitrypsin / Q000502:physiology; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin