RT Journal Article SR Electronic T1 Alpha-1 antitrypsin deficiency: An underrecognized, treatable cause of COPD JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 507 OP 514 DO 10.3949/ccjm.83a.16031 VO 83 IS 7 A1 James K. Stoller YR 2016 UL http://www.ccjm.org/content/83/7/507.abstract AB Alpha-1 antitrypsin deficiency is common but underrecognized. Because delayed diagnosis is thought to be associated with adverse outcomes, clinicians are encouraged to follow available guidelines and test for the disease in all symptomatic adults with fixed airflow obstruction. The weight of available evidence supports the biochemical and clinical efficacy of intravenous augmentation therapy. Promising new therapies are being investigated.