Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01KI07114, 01KI07113, 01KI1010I, 01KI07110, 01KI1010D, 01KI07111)
Deutsche Zentrum für Lungenforschung (82DZLJ19A2)
Text and Data Mining valid from 2019-04-04
Received: 5 September 2018
Accepted: 7 January 2019
First Online: 4 April 2019
Ethics approval and consent to participate
: In this manuscript, data from the PROGRESS study (clinicaltrials.gov: NCT02782013) were used. PROGRESS was approved by the ethics committee of the University of Jena (2403–10/08) and by locally responsible ethics committees of each study center. All participants or their legal guardians gave written informed consent for participation in the study. Requirements of the Declaration of Helsinki [CitationRef removed] and the ICH-GCP guideline [CitationRef removed] were met.
: Not applicable.
: The authors declare that they have no competing interests.
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