1. Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, University of Minnesota, Minnesota, Minneapolis.
2. College of Education and Human Development, University of Minnesota, Minnesota, Minneapolis.
3. Biostatistical Design and Analysis Center, Clinical and Translational Science Institute, University of Minnesota, Minnesota, Minneapolis.
4. Division of Biostatistics, School of Public Health, University of Minnesota, Minnesota, Minneapolis.
5. School of Kinesiology, College of Education and Human Development, University of Minnesota, Minnesota, Minneapolis.