1 Department of Emergency Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.
2 Division of Geriatric Medicine and Center for Aging and Health, University of North Carolina at Chapel Hill, School of Medicine, Chapel Hill, North Carolina, USA.
3 Division of Pharmaceutical Outcomes and Policy, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA.
4 Center for Health Equity Research and Promotion, Veterans Affairs (VA) Pittsburgh Healthcare System, Pittsburgh, Pennsylvania, USA.
5 Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, North Carolina, USA.
6 Department of Emergency Medicine, Cooper University Hospital, Camden, New Jersey, USA.
7 Department of Emergency Medicine, University of Colorado, Denver, Colorado, USA.