1. Department of Pediatrics, Dartmouth Institute for Health Policy and Clinical Practice, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire;
2. Institute of Healthcare Delivery and Population Science, School of Medicine, University of Massachusetts–Baystate, Springfield, Massachusetts;
3. Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Massachusetts;
4. Division of Hospital Medicine, Baystate Medical Center, Springfield, Massachusetts; and
5. Department of Population and Quantitative Health Sciences, School of Medicine University of Massachusetts, Worcester, Massachusetts