1. Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
2. Department of Neurology, Kyoto Okamoto Memorial Hospital,
Kyoto, Japan
3. Department of Neurology, Keio University School of Medicine, Tokyo, Japan
4. Department of Neurology, Saiseikai Shiga Hospital, Shiga, Japan
5. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA