Published on in Vol 6, No 9 (2018): September
1 Division of General Medicine & Clinical Epidemiology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, United States
2 Division of General Pediatrics and Adolescent Medicine, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, United States
3 Program on Health and Clinical Informatics, University of North Carolina School of Medicine, Chapel Hill, NC, United States
4 Carolina Health Informatics Program, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
5 School of Information and Library Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
*these authors contributed equally