1. From the Center for Medical Ethics and Health Policy, Baylor College of Medicine, Houston (S.R.M.); the Department of Pediatrics, Harvard Medical School, Boston (J.P.W.); the American Academy of Pediatrics Julius B. Richmond Center of Excellence, Elk Grove Village, IL (J.P.W.); and Stanford Law School and the Department of Health Research and Policy, Stanford University School of Medicine, Stanford, CA (M.M.M.).