1. Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD
2. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
3. Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD
4. Research and Exploratory Development Department, Johns Hopkins University Applied Physics Laboratory, Laurel, MD
5. Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
6. Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
7. Department of Neurology and Neurosurgery, UMC Utrecht Brain Center, Utrecht, The Netherlands