Wirtz Hubert, Petroff David, Bräunlich Jens
Department of Respiratory Medicine, University of Leipzig AöR, Leipzig, Germany.
Clinical Trial Centre, University of Leipzig, Leipzig, Germany.
Int J Chron Obstruct Pulmon Dis. 2019 Sep 9;14:2119-2120. doi: 10.2147/COPD.S228830. eCollection 2019.