1 Department of Neurology, Washington University in St. Louis, St. Louis, Missouri, USA.
2 Department of Anesthesiology and Surgical Intensive Care, Université de Lorraine, Nancy, France.
3 Department of Diagnostic and Therapeutic Neuroradiology, Université de Lorraine, Nancy, France; IADI, INSERM U1254, Université de Lorraine, Nancy, France.