Tiotropium and Salmeterol in COPD Patients at Risk of Exacerbations: A Post Hoc Analysis from POET-COPD®
Crossref DOI link: https://doi.org/10.1007/s12325-015-0216-2
Published Online: 2015-06-23
Published Print: 2015-06
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Vogelmeier, Claus F.
Asijee, Guus M.
Kupas, Katrin
Beeh, Kai M.