1. Department of Neurology, Columbia University Medical Center, New York, NY, USA
2. Department of Neurology, New York University School of Medicine, New York, NY, USA
3. Department of Emergency Medicine, Columbia University Medical Center, New York, NY, USA
4. Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
5. Department of Neurology, New York–Presbyterian Hospital, New York, NY, USA
6. Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA