Efficacy and Safety of Tulobuterol Patch Combined With Tiotropium Bromide for Relieving Dyspnea Symptom of Chronic Obstructive Pulmonary Disease
Conditions
- Chronic Obstructive Pulmonary Disease
Interventions
- DRUG: tulobuterol
- DRUG: Tiotropium Bromide
- DRUG: tiotropium bromide
Sponsor
Shanghai Zhongshan Hospital