Endobronchial Valve in Patients With Heterogeneous Emphysema
NCT02823223
·
clinicaltrials.gov ↗
NA
Phase
UNKNOWN
Status
72
Enrollment
OTHER
Sponsor class
Conditions
Chronic Obstructive Pulmonary Disease
Emphysema
Interventions
DEVICE:
Zephyr endobronchial valve placement
Sponsor
Chinese PLA General Hospital