DOI: 10.1055/s-00000059

Pneumologie

References

Vogelmeier C, Hederer B, Glaab T. et al.
Tiotropium versus salmeterol for the prevention of exacerbations of COPD.

N Engl J Med 2011;
364: 1093-1103

Vogelmeier C, Hederer B, Glaab T. et al.
Tiotropium versus salmeterol for the prevention of exacerbations of COPD.

N Engl J Med 2011;
364: 1093-1103

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