[1] Univ N Carolina, Div Geriatr Med, Dept Med, Palliat Care Program, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Gillings Sch Global Publ Hlth, Div Geriatr Med, Palliat Care Program,Dept Med, Chapel Hill, NC 27599 USA
[3] Univ N Carolina, Gillings Sch Global Publ Hlth, Ctr Aging & Hlth, Chapel Hill, NC 27599 USA
[4] Univ N Carolina, Gillings Sch Global Publ Hlth, Publ Hlth Leadership Program, Chapel Hill, NC 27599 USA
[5] NC Community Care Networks Inc, Community Care North Carolina, Raleigh, NC USA