Cerneo, Vitznau, Luzern, Switzerland
University Hospital Zurich, Pulmonary Division, Zurich, Switzerland
University Hospital Zurich, Division of Neurology, Zurich, ZH, Switzerland
University Hospital Zurich, Zurich, ZH, Switzerland
University Hospital Zurich, Division of Neurology, Zurich, ZH, Switzerland
University Hospital Zurich, Zurich, Switzerland
University of Zurich, Balgrist University Hospital, Zurich, Switzerland
University of Zurich, Zurich, Switzerland
Cantonal Hospital of St. Gallen, St. Gallen, Saint Gallen, Switzerland
University of Zurich, Balgrist University Hospital, Spinal Cord Injury Center, Zurich, Switzerland
Swiss Paraplegic Centre Nottwil, Nottwil, Luzern, Switzerland
University Hospital Zurich, Pulmonary Division, Zurich, Switzerland