[1] Icahn Sch Med Mt Sinai, Dept Emergency Med, New York, NY USA
[2] Icahn Sch Med Mt Sinai, Brookdale Dept Geriatr & Palliat Med, New York, NY USA
[3] James J Peters Vet Affairs Med Ctr, Geriatr Res Educ Clin Ctr, New York, NY USA
[4] Univ Rochester, Div Prehosp Med, Dept Emergency Med, New York, NY USA
[5] Univ Rochester, Div Prehosp Med, Dept Publ Hlth Sci, New York, NY USA
[6] Univ Rochester, Div Prehosp Med, Dept Med Geriatr & Aging, New York, NY USA
[7] Vanderbilt Univ, Dept Emergency Med, Nashville, TN 37235 USA
[8] Vanderbilt Univ, Ctr Qual Aging, Nashville, TN 37235 USA
[9] Washington Univ, Div Emergency Med, St Louis, MO USA
[10] Northwestern Univ, Dept Emergency Med, Feinberg Sch Med, Chicago, IL 60611 USA
[11] Northwestern Med, Chicago, IL USA