DOI:
10.1055/s-00000059
Pneumologie
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References
Fabbri LM, Calverley PMA, Izquierdo-Alonso JL et al.
Roflumilast in moderate to severe chronic obstructive pulmonary disease treated with longacting bronchodilators: two randomised trials.
Lancet 2009;
374: 695-703
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