1. Department of Neuroscience and Pharmacology, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States
2. Veterans Affairs Health Care System, Iowa City, Iowa, United States
3. Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States
4. Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States
5. Obesity Research and Education Initiative, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States