Dept. of Visceral and Transplantation Surgery, University Hospital Zurich, Zurich, Switzerland
University Hospital Zürich, Zürich, Switzerland
University of Zurich, Department of Neurology, Zurich, Switzerland
Heinrich Heine University, Dusseldorf, Germany
University of Geneva, Department of Neurology, Geneva, Switzerland
University of Lausanne, Department of Neurology, Lausanne, Switzerland
University of Bern, Department of Neurology, Bern, Switzerland