[Early treatment of COPD with tiotropium].
Buhl R, Welte T, Vogelmeier C, Gillissen A, Voshaar T, Kögler H, Liu D, Glaab T.
Buhl R, et al. Among authors: glaab t.
Pneumologie. 2012 Oct;66(10):589-95. doi: 10.1055/s-0032-1310281. Epub 2012 Sep 25.
Pneumologie. 2012.
PMID: 23011771
Free article.
Clinical Trial.
German.