Long-acting beta2-agonist in addition to tiotropium versus either tiotropium or long-acting beta2-agonist alone for chronic obstructive pulmonary disease

  • Charlotta Karner, Christopher J Cates
  • February 2011, Wiley
  • DOI: 10.1002/14651858.cd008989

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http://dx.doi.org/10.1002/14651858.cd008989

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