Article
A registry of patients with severe deficiency of alpha 1-antitrypsin. Design and methods. The Alpha 1-Antitrypsin Deficiency Registry Study Group.
Chest - 1 Oct 1994
Abstract excerpt
The Registry of Patients with Severe Deficiency of Alpha 1-Antitrypsin (A1AT) is a multicenter natural history study, with 37 participating clinical centers in the United States (36 centers) and Canada (1 center). The study has enrolled 1,129 individuals aged > or = 18 years with severe deficiency of A1AT (serum level < or = 11 microM), and will follow them longitudinally for up to 7 years, characterizing the...
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