In the original publication [1] is an incorrect sentence in the abstract under Conclusions.
CITATION STYLE
Di Marco, F., Sotgiu, G., Santus, P., O’Donnell, D. E., Beeh, K. M., Dore, S., … Centanni, S. (2018, April 24). Correction: Long-acting bronchodilators improve exercise capacity in COPD patients: A systematic review and meta-analysis [Respir Res, 19, (2018), (18)] DOI: 10.1186/s12931-018-0721-3. Respiratory Research. BioMed Central Ltd. https://doi.org/10.1186/s12931-018-0764-5
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