Application of a multistage classifier to the diagnosis of some occupational disease groups.

This paper describes the basic concept of a multistage classifier and gives the results of the application of this approach to the diagnosis of vibratory syndrome and other diseases with similar symptoms. The multistage classifier was applied to classification of the most informative symptoms at particular stages of classification.

[Serum alpha 1-antitrypsin level in copper miners].

The level of alpha 1-antitrypsin in blood serum in copper miners was examined. Among 278 subjects not a single case of total insufficiency was found, whereas the partial insufficiency of this inhibitor was found in 4.3% of subjects.