1. Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
2. Division of Diabetes, Endocrinology and Metabolism, Ohio State University, Columbus, Ohio, USA.
3. Division of Maternal and Fetal Medicine, Ohio State University, Columbus, Ohio, USA.
4. Department of Pediatrics, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
5. Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, Colorado, USA.