Combination inhaled steroid and long-acting beta2-agonist in addition to tiotropium versus tiotropium or combination alone for chronic obstructive pulmonary disease

  • Charlotta Karner, Christopher J Cates
  • March 2011, Wiley
  • DOI: 10.1002/14651858.cd008532.pub2

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The following have contributed to this page: Dr Christopher J Cates