1. COUNTERPOINT: Should BAL Be Routinely Performed in the Diagnostic Evaluation of Idiopathic Pulmonary Fibrosis? No 
Joshua J. Mooney, MD, Harold R. Collard, MD, FCCP 
CHEST 
Volume 152, Issue 5, Pages (November 2017)
DOI: /j.chest
Copyright © 2017 American College of Chest Physicians Terms and Conditions

2. Figure 1
The Fagan nomogram14 demonstrating the impact of a generic diagnostic test’s likelihood ratios (either positive or negative) on the posttest probability of a diagnosis. To determine the posttest probability of a diagnostic test, a straight line is drawn from the pretest probability of a diagnosis (left column) through the test’s likelihood ratio (central column) to arrive at the posttest probability (right column). Two examples of large commonly definitive positive and negative likelihood ratios are shown.
CHEST  , DOI: ( /j.chest )
Copyright © 2017 American College of Chest Physicians Terms and Conditions