1. From the Computational Epidemiology Group, Children's Hospital Informatics Program at the Harvard–Massachusetts Institute of Technology Division of Health Sciences and Technology (J.S.B., C.C.F., E.H.C., M.K., A.L.S., S.R.M.); the Department of Pediatrics, Harvard Medical School, Children's Hospital Boston (J.S.B., M.K.); and the Department of Epidemiology, School of Public Health, Boston University (S.R.M.) — all in Boston; the Media Laboratory, Massachusetts Institute of Technology, Cambridge, MA (C.C...