1 Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA. Electronic address: atcrane@umn.edu.
2 University of Minnesota Law School, Minneapolis, MN, USA; Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA; Massachusets General Hospital Center for Law, Brain, and Behavior, Boston, MA, USA.
3 Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA; Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA; Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA.