Wälscher, Julia
Gross, Benjamin
Morisset, Julie
Johannson, Kerri A.
Vasakova, Martina
Bruhwyler, Jacques
Kreuter, Michael
Article History
Received: 27 July 2019
Accepted: 5 January 2020
First Online: 9 January 2020
Ethics approval and consent to participate
: The Ethics Committee of the University of Heidelberg approved this retrospective study. (S-318/2013).
: Not applicable.
: JW received personal fees from Boehringer Ingelheim und Roche.MK received research grants and personal fees from Boehringer Ingelheim und Roche.JB received fees from the German Center for Lung Research, Heidelberg, Germany, and was responsible for the statistical analyses.The other authors declare that they have no competing interests.