Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
University Hospital Basel, Basel, Switzerland
University Hospital Zurich, Division of Anaesthesiology, Zurich, ZH, Switzerland
University Hospital Zurich, Rheumatology Department, Zurich, ZH, Switzerland
University Hospital Zurich, Department of Psychiatry, Zurich, ZH, Switzerland
University Hospital Zurich, Division of Pneumology, Zurich, ZH, Switzerland
University Hospital Zurich, Division of Pneumology, Zurich, ZH, Switzerland
University Hospital Basel, Basel, Switzerland
University Hospital Zurich, Department of Dermatology, Zurich, ZH, Switzerland
University Hospital Zurich, Department of Oncology, Zurich, ZH, Switzerland
University Hospital Zurich, Divisions of Visceral Surgery and Nucelar Medicine, Zurich, ZH, Switzerland