[1] Dept Vet Affairs Birmingham, Birmingham, AL USA
[2] Atlanta Geriatr Res Educ & Clin Ctr, Atlanta, GA USA
[3] Atlanta Vet Affairs Med Ctr, Atlanta, GA USA
[4] Emory Univ, Dept Med, Atlanta, GA 30322 USA
[5] Dept Vet Affairs, Geriatr Res Educ & Clin Ctr, Durham, NC USA
[6] Hlth Serv Res & Dev Ctr, Durham, NC USA
[7] Durham Vet Affairs Med Ctr, Durham, NC USA
[8] Duke Univ, Dept Med, Durham, NC USA
[9] Dept Vet Affairs, Geriatr Res Educ & Clin Ctr, Nashville, TN USA
[10] Tennessee Valley Vet Affairs Hlth Syst, Nashville, TN USA
[11] Vanderbilt Univ, Dept Med, Nashville, TN USA
[12] Univ Alabama Birmingham, Dept Med, Birmingham, AL 35294 USA
[13] Dept Vet Affairs, Geriatr Res Educ & Clin Ctr, Bronx, NY USA
[14] Icahn Sch Med Mt Sinai, Dept Emergency Med, New York, NY 10029 USA
[15] Icahn Sch Med Mt Sinai, Dept Geriatr & Palliat Med, New York, NY 10029 USA
[16] Univ Alabama Birmingham, Dept Epidemiol, Birmingham, AL USA
[17] Emory Univ, Dept Emergency Med, Atlanta, GA 30322 USA
[18] Emory Univ, Sch Nursing, Atlanta, GA 30322 USA