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Subjects
- Clinical Trials as Topic1
- Humans1
- Outcome Assessment (Health Care)1
- Patient Outcome Assessment1
- Patient Reported Outcome Measures1
- Pulmonary Disease, Chronic Obstructive -- therapy1
- Self-Assessment[remove]1
- Surveys and Questionnaires1
- United States1
- United States. Department of Health and Human Services.1
- United States. Food and Drug Administration.1