DOI:
10.1055/s-00000059
Pneumologie
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References
Kahnert K, Alter P, Young D. et al.
The revised GOLD 2017 COPD categorization in relation to comorbidities.
Respir Med 2018;
134: 79-85
DOI: 10.1016/j.rmed.2017.12.003.
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