1. Department of Emergency Medicine; School of Medicine; University of Colorado; Aurora Colorado
2. Department of Biostatistics and Informatics; Colorado School of Public Health; Aurora Colorado
3. Geriatric Research, Education and Clinical Center; Eastern Colorado Department of Veterans Affairs; Denver Colorado
4. Department of Clinical Pharmacy; Skaggs School of Pharmacy and Pharmaceutical Sciences; University of Colorado; Aurora Colorado
5. Division of Geriatric Medicine; School of Medicine; University of Colorado; Aurora Colorado