1. Department of Pulmonology and Intensive Care Medicine, University Hospital Aachen, 52074 Aachen, Germany
2. Philips GmbH Innovative Technologies Aachen, Aachen, Germany
3. Fachhochschule Dortmund, FB Informatik, Darmstadt, Germany
4. Kairos GmbH, Bochum, Germany
5. Department of Pulmonology, Cologne Merheim Hospital, Kliniken Der Stadt Köln gGmbH, Witten/Herdecke University, Cologne, Germany
6. Department of Pulmonology and Intensive Care Medicine, University Hospital Aachen, Aachen, Germany