DOI: 10.1055/s-00000123

Notfall & Hausarztmedizin

References

Donaldson GC, Seemungal TAR, Bhowmik A, Wedzicha JA..
Relationship between exacerbation frequency and lung function decline in chronic obstructive pulmonary disease. 
Thorax 2002; 57: 847-852  

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