1. Has the 6-Min Walk Distance Run Its Course?
Vallerie V. McLaughlin, MD, FCCP 
CHEST 
Volume 142, Issue 6, Pages (December 2012)
DOI: /chest
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Given the changes in PAH treatment, short-term assessment of 6MWD may not be the best PAH trial end point in MWD =6-min walk distance; EU = European Union; FC = functional class; PAH = pulmonary arterial hypertension; Pts = patients; Tx = therapy; US = United States.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions