1 Department of Pediatrics, MaineHealth, Portland, Maine; Center for Interdisciplinary Population & Health Research, MaineHealth Institute for Research, Westbrook, Maine.
2 Center for Interdisciplinary Population & Health Research, MaineHealth Institute for Research, Westbrook, Maine; Department of Pediatric Endocrinology and Diabetes, MaineHealth, Portland, Maine.
3 Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, New York.