1. Laboratory for Structural Neuropathology, RIKEN Brain Science Institute, Wako‐shi, Saitama, Japan
2. Department of Neurology, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
3. National Children's Medical Research Center, Taishido, Setagaya‐ku, Tokyo, Japan
4. Tokyo Metropolitan Institute for Neuroscience, Fuchu Tokyo, Japan