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Subject
- 102 Humans
- 53 Male
- 49 Female
- 43 Aged
- 30 Palliative Care
- 30 Pulmonary Disease, Chronic Obstru...
- 29 Respiratory System
- 27 Middle Aged
- 23 Chronic Disease
- 19 Aged, 80 and over
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Date issued
- 21 2020 - 2023
- 80 2010 - 2019
- 1 2008 - 2009
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- 102 true
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- 53 closed_access
- 17 open_access
- 14 Closed Access
- 9 Open Access