1. Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan.
2. Department of Neurological Surgery, University of California–San Francisco, San Francisco, California.
3. Brain and Spinal Injury Center, University of California–San Francisco, San Francisco, California.
4. Department of Radiology, University of California–San Francisco, San Francisco, California.
5. Interdisciplinary Shock Wave Application Research Division, Institute of Fluid Science, Tohoku University, Tohoku, Japan.
6. Department of Neurosurgery, Walter Reed Army Medical Center, Washington, D.C.
7. Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.