Factors That Affect the Development of COPD Symptoms
Clinical trial NCT00740337 · COMPLETED
Trial details
- NCT number
- NCT00740337
- Sponsor
- Washington University School of Medicine
- Status
- COMPLETED
- Study type
- OBSERVATIONAL
- Start date
- 2007-10-01
- Primary completion
- 2016-02-01
- Enrollment
- 82
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