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Methacholine challenge tests to demonstrate therapeutic equivalence of terbutaline sulfate via different Turbuhaler® devices in patients with mild to moderate asthma: Appraisal of a four-way crossover design.
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: beckman o. 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: 28232118 Clinical Trial.
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