1. Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts; Department of Physiology, Dokkyo University School of Medicine, Mibu, Japan.
2. Department of Physiology, Dokkyo University School of Medicine, Mibu, Japan.
3. Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts; Gene Regulation Research, Lilly Research Laboratories, Eli Lilly and Co., Lilly Corporate Center, Indianapolis, Indiana.