1. Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, USA
2. Joslin Diabetes Center, Boston, Massachusetts, USA
3. Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts, USA
4. IUF Leibniz Research Institute for Environmental Medicine and Medical School, University of Düsseldorf, Düsseldorf, Germany
5. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
6. Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
7. Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA