Massachusetts General Hospital, Boston, Massachusetts 02114 United States
Cleveland Clinic Neurological Institute Mellen Center, Cleveland, Ohio 44195 United States
The University of Texas Health Science Center at Houston, Houston, Texas 77030 United States
Rigshospitalet, University of Copenhagen, Kopenhagen, Region Sjælland DK2100 Denmark
CHU de Bordeaux - Hôpital Pellegrin Service Gynecologie Obstetrique, Bordeaux, Gironde 33000 France
Groupe Hospitalier Pitie-Salpetriere - Charles-Foix Clinical Investigation Center Paris-Est, Paris, Paris 75013 France
Klinikum der Universität München Friedrich-Baur-Institut, München, 80336 Germany
Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, 20133 Italy
Radboud University Medical Center, Nijmegen, Gelderland 6525 Netherlands
University College London Hospitals NHS Foundation Trust National Hospital for Neurology and Neurosurgery, London, Greater London WC1N 3BG United Kingdom