[Study on the relationship between serum alpha 1 antitrypsin level, the phenotype Pi and various bronchopulmonary...

The authors determined in 418 adults, males and females, admitted to hospital on the Respiratory Unit of the Montpellier University Hospital, the serum levels of alpha-1-antitrypsin, phenotype Pi and serum immunoglobulin levels. They compare these data together and with the diagnosis using a mathematical method known as factorial correspondence analysis.