[1] Vet Affairs Hlth Care Syst, Geriatr Res Educ & Clin Ctr, Durham, NC USA
[2] Duke Univ, Med Ctr, Dept Med, Ctr Study Aging,Claude D Pepper Older Amer Indepe, Durham, NC 27710 USA
[3] Vet Affairs Greater Los Angeles Healthcare Syst, Geriatr Res Educ & Clin Ctr, Los Angeles, CA USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90095 USA
[5] Miami Healthcare Syst, Geriatr Res Educ & Clin Ctr, Miami, FL USA
[6] Univ Miami, Miller Sch Med, Miami, FL 33136 USA
[7] Vet Affairs Maryland Hlth Care Syst, Geriatr Res Educ & Clin Ctr, Baltimore, MD USA
[8] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[9] Vet Affairs Med Ctr, Canandaigua, NY USA
[10] Vet Affairs Pacific Hlth Care Syst, Geriatr Rehabil & Clin Ctr, Honolulu, HI USA
[11] Vet Affairs Med Ctr, Geriatr Res Educ & Clin Ctr, Salem, VA USA
[12] Duke Univ, Med Ctr, Dept Orthoped Surg, Durham, NC USA
[13] Vet Affairs Med Ctr, Geriatr & Extended Care Data & Anal Ctr, Canandaigua, NY USA
[14] Univ Rochester, Med Ctr, Rochester, NY 14642 USA