Improved daytime spirometric efficacy of tiotropium compared with salmeterol in patients with COPD

Authors:
  • HCH. Covelli
    H. Covelli
  • RLR. Lapidus
    R. Lapidus
  • SBS. Bhattycharya
    S. Bhattycharya
  • SKS. Kesten
    S. Kesten
  • CCC. Cassino
    C. Cassino

Abstract
No abstract available

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