1. University of Groningen, University Medical Center Groningen, Department of Pulmonary Medicine and Tuberculosis, Groningen, the Netherlands
2. University of Groningen, University Medical Center Groningen, GRIAC Research Institute, Groningen, the Netherlands
3. University of Groningen, University Medical Center Groningen, Department of Oral and Maxillofacial Surgery, Groningen, the Netherlands
4. University of Groningen, University Medical Center Groningen, Center for Home Mechanical Ventilation, Groningen, the Netherlands
5. University of Groningen, University Medical Center Groningen, Department of Clinical Neurophysiology, Groningen, the Netherlands