Introduction
Study Design
The Healthy Study Population
Bronchoalveolar Lavage Fluid Recovery
Cells in Bronchoalveolar Lavage Fluid
Lymphocyte Surface Antigen Phenotypes in Bronchoalveolar Lavage Fluid and Peripheral Blood
Proteins in Bronchoalveolar Lavage Fluid
Bronchoalveolar Lavage Fluid and Venous Blood Constituents in Idiopathic Pulmonary Fibrosis and Selected Comparison Groups
Summary and Recommendations