[1] Univ Utah, Dept Internal Med, Div Geriatr, Spencer Fox Eccles Sch Med, 30 N 1900 E,AB 193 SOM, Salt Lake City, UT 84132 USA
[2] VA Salt Lake City Geriatr Res Educ & Clin Ctr GRE, Salt Lake City, UT USA
[3] VA Salt Lake City Healthcare Syst, Salt Lake City, UT USA
[4] Univ Utah, Dept Biomed Informat, Spencer Fox Eccles Sch Med, Salt Lake City, UT 84132 USA
[5] VA Birmingham Atlanta Geriatr Res Educ & Clin Ctr, Birmingham, AL USA
[6] VA Birmingham Atlanta Geriatr Res Educ & Clin Ctr, Decatur, GA USA
[7] Emory Univ, Div Geriatr & Gerontol, Sch Med, Atlanta, GA USA
[8] Univ Alabama Birmingham, Heersink Sch Med, Dept Med, Div Gerontol Geriatr & Palliat Care, Birmingham, AL USA
[9] Vet Hlth Adm, Dept Vet Affairs, Off Geriatr & Extended Care, Washington, DC USA