[1] Duke Univ, Dept Populat Hlth Sci, 215 Morris St, Durham, NC 27701 USA
[2] Durham Vet Affairs Hlth Care Syst, Ctr Innovat Accelerate Discovery & Practice Trans, Durham, NC USA
[3] Duke Margolis Ctr Hlth Policy, Durham, NC USA
[4] Duke Univ, Sanford Sch Publ Policy, Durham, NC USA
[5] Duke Univ, Sch Med, Ctr Study Aging & Human Dev, Durham, NC USA
[6] Univ Texas Hlth Sci Ctr San Antonio, Dept Med, Gen & Hosp Med Div, San Antonio, TX 78229 USA
[7] Elizabeth Dole Fdn, Campaign Inclus Care, Washington, DC USA
[8] Dept Vet Affairs, Natl Caregiver Support Program, Washington, DC USA