aDivision of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA
bDepartment of Epidemiology and Population Health, Stanford University, Stanford, CA, USA
cDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
dDiabetes Unit, Massachusetts General Hospital, Boston, MA, USA
eEnvironmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
*Corresponding author. Harvard Pilgrim Health Care Institute, Boston, MA, USA. P_lin@hphci.harvard.edu (P.-I.D. Lin).