45
Participants
Start Date
January 31, 2016
Primary Completion Date
January 31, 2021
Study Completion Date
January 31, 2026
Observational Study
Observational study utilizing bronchoscopy, and imaging
RECRUITING
University of California, San Francisco (Parnassus), San Francisco
University of California, San Francisco
OTHER
University of Iowa
OTHER
National Jewish Health
OTHER