[Studies on cell-mediated immunity in patients with chronic lymphatic leukemia].

More than 100,000 variables (anamnestic, clinical, serological, radiological and histological individual findings) of 142 patients with rheumatoid arthritis underwent a factor analysis. In the calculatory statistical course by means of information densification we established a few basic variables, called factors. The interpretation of these factors showed apart from logical and pathogenetic connection also relations which gave an impetus for further clinical research.