%0 Journal Article
%B Lancet Respir Med
%D 2018
%G eng
%R 10.1016/S2213-2600(18)30102-4
%T Tiotropium and olodaterol in the prevention of chronic obstructive pulmonary disease exacerbations (DYNAGITO): a double-blind, randomised, parallel-group, active-controlled trial.
%1 https://www.ncbi.nlm.nih.gov/pubmed/29605624?dopt=Abstract