37
Participants
Start Date
September 30, 2005
Primary Completion Date
June 30, 2010
Study Completion Date
July 31, 2010
blood draw
All subjects undergo blood draws at study visits and at the time of COPD exacerbation visits.
University of Michigan at Ann Arbor, Ann Arbor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
University of Michigan
OTHER