1. From the Department of Neurology, University of Minnesota Medical School, Minneapolis (A.J.Z., P.D., D.A., J.K., B.J., C.S.)
2. Department of Neurosciences, Eastern Health, Box Hill, Australia (P.C.)
3. Eastern Health Clinical School, Monash University, Melbourne, Australia (P.C.)
4. Biomedical Library, University of Minnesota, Minneapolis (J.K.)
5. Department of Clinical Neurosciences, University of Calgary, Canada (B.K.M.).