1 Neurology Clinic, Clinical Center of Serbia, School of Medicine, University of Belgrade, Belgrade, Serbia.
2 Department of Neurology, Innsbruck Medical University, Innsbruck, Austria.
3 University College London, Institute of Neurology, Queen Square, London, UK.
4 Istituto di Ricovero e Cura a Carattere Scientifico, Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.
5 Department of Neuroscience, University of Padua, Padua, Italy.
6 Department of Neurology, Christian Albrecht University, Kiel, Germany.
7 Hertie Institute for Clinical Brain Research Tübingen, Tübingen, Germany.
8 Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.
9 Dipartimento Scienze Biomediche e Neuromotorie, Alma Mater Studiorum, University of Bologna, Bologna, Italy.
10 Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
11 Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
12 Brain and Mind Centre, Sydney Medical School, University of Sydney, Camperdown, Australia; School of Medical Sciences, University of New South Wales, Wales, Kensington, Australia; and Neuroscience Research Australia, Randwick, Australia.
13 Department of Neurology, Technische Universität München, and German Center for Neurodegenerative Diseases, München, Germany.
14 Autonomic Unit, National Hospital for Neurology and Neurosurgery, Queen Square/Division of Clinical Neurology, Institute of Neurology, University College London, London, UK.
15 Dysautonomia Center, Langone Medical Center, New York University School of Medicine, New York, New York, USA.
16 Department of Neurology, University of Bonn, and German Center for Neurodegenerative Diseases, Bonn, Germany.
17 Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University Health Network, Division of Neurology, University of Toronto, Toronto, Ontario, Canada.
18 Department of Neurology, Ludwig-Maximilians-Universität München, and German Center for Neurodegenerative Diseases, München, Germany.
19 Autonomic and Neurovascular Medicine Centre, Hospital of St John & St Elizabeth, London, UK.
20 Lindo Wing, Imperial College Healthcare National Health Service Trust, St Mary's Hospital, London, UK.
21 Queen Square Institute of Neurology, University College London, London, UK.
22 French Reference Center for MSA, Department of Neurology, University Hospital Bordeaux, Bordeaux, France.
23 Institute of Neurodegenerative Disorders, University Bordeaux, Bordeaux, France.
24 Department of Uro-Neurology, The National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
25 Center for Neurodegenerative Diseases, Department of Medicine and Surgery, Neuroscience Section, University of Salerno, Fisciano, Italy.
26 Neurology, Internal Medicine, Sakura Medical Center, Toho University, Sakura, Japan.
27 Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
28 Neurodegenerative Diseases Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
29 Department of Neurology, Johns Hopkins University Medical Center, Baltimore, Maryland, USA.