1. Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania;
2. Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee;
3. Department of Developmental and Regenerative Biology, Center for Molecular Cardiology & Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, New York;
4. Institute of Molecular Medicine, Department of Medicine, University of California San Diego, La Jolla, California;
5. Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania;
6. Institute for Diabetes, Obesity and Metabolism, Philadelphia, Pennsylvania.