1. Department of Neurology, Oregon Health and Science University, Portland, Oregon, United States of America
2. Division of Diabetes, Endocrinology & Metabolism, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
3. Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
4. Department of Pharmacy Practice and Science, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
5. Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, Nebraska, United States of America