1. Inouye Eye Hospital, Tokyo, Japan
2. Department of Ophthalmology, Kitasato University Hospital, Sagamihara, Japan
3. Department of Neurology, Tohoku University Hospital, Miyagi, Japan
4. Department of Neurology, Yonezawa National Hospital, Yamagata, Japan
5. Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata, Japan