1. Section of Neurosurgery, University of Manitoba, Winnipeg, Manitoba, Canada
2. Institute for Health Informatics, Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis
3. Brain and Spinal Cord Injury Center (BASIC), University of California, San Francisco
4. Department of Neurological Surgery, University of California, San Francisco
5. Department of Neurosurgery, University of California, Davis
6. Department of Neurosurgery, University of Washington, Seattle
7. Department of Nursing, University of California, San Francisco
8. University of Utah School of Medicine, Salt Lake City
9. San Francisco Veterans Affairs Medical Center, San Francisco, California