1. Fraunhofer Institute of Toxicology and Experimental Medicine (ITEM)HannoverGermany
2. Boehringer Ingelheim Pharma GmbH & Co. KGGermany, and affiliates in The Netherlands and UK
3. Department of Respiratory DiseasesAtrium Medisch CentrumHeerlenThe Netherlands
4. Department of Respiratory DiseasesGhent University HospitalGhentBelgium