1. Department of Neurosurgery, NorthShore University HealthSystem, Evanston;
2. University of Chicago, Pritzer School of Medicine, Chicago;
3. Department of Neurosurgery, John H. Stroger Jr. Hospital of Cook County, Chicago;
4. Department of Neurosurgery, Advocate Good Samaritan Hospital, Downers Grove;
5. Midwestern University, Chicago College of Osteopathic Medicine, Downers Grove, Illinois; and
6. The Inflammation Research Foundation and Zone Labs Inc., Peabody, Massachusetts