1. Department of Biochemistry, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
2. Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
3. Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
4. Department of Psychiatry and Psychology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
5. Department of Immunology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
6. Department of Biochemistry, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA.