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Subject
- 78 Humans
- 39 Female
- 39 Male
- 34 Aged
- 24 Palliative Care
- 23 Pulmonary Disease, Chronic Obstru...
- 22 Chronic Disease
- 22 Respiratory System
- 19 Middle Aged
- 17 Analgesics, Opioid
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Date issued
- 1 2020 - 2023
- 76 2010 - 2019
- 1 2008 - 2009
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- 15 open_access
- 1 Open Access