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Bjermer L, Gauvreau GM, Postma DS, O'Byrne PM, van den Berge M, Boulet LP, Beckman O, Persson T, Román J, Carlholm M, Schützer KM, Eckerwall G.Bjermer L, et al. Among authors: postma ds.Pulm Pharmacol Ther. 2017 Jun;44:1-6. doi: 10.1016/j.pupt.2017.02.004. Epub 2017 Feb 20.Pulm Pharmacol Ther. 2017.PMID: 28232118Clinical Trial.