β-blockers in exacerbations of COPD: feasibility of a randomised controlled trial
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
European Respiratory Society
2017-01-01
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Series: | ERJ Open Research |
Online Access: | http://openres.ersjournals.com/content/3/1/00090-2016.full |