1. Center for Human Genetic Research and
2. Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA, USA,
3. Department of Medicine, Harvard Medical School, Boston, MA, USA,
4. Medical and Population Genetics Program and
5. Metabolism Initiative, Broad Institute of MIT and Harvard, Cambridge, MA, USA,
6. MGH Weight Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA,
7. Genetics Rosetta Inpharmatics LLC, a wholly owned subsidiary of Merck & Co., Inc., Seattle, WA 98109, USA,
8. Department of Metabolic Disorders, Merck Research Laboratories, Rahway, NJ 07065, USA and
9. Program in Genomics and Divisions of Endocrinology and Genetics, Children's Hospital, Boston, MA, USA