A Study Based on Medical Records That Looks at the Duration of Use of Two Types of Inhalers With Different Medicines in Patients With Chronic Obstructive Pulmonary Disease (COPD)
CompletedNCT03979807
Boehringer IngelheimPulmonary Disease, Chronic Obstructive
Start: 2019-06-10End: 2019-06-11Updated: 2021-11-15