1. Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama.
2. Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, Alabama.
3. Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama.
4. The Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University, St. Louis, Missouri.
5. Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin.