[1] Univ N Carolina, Sch Nursing, 7460 Carrington Hall, Chapel Hill, NC 27599 USA
[2] Duke Univ, Durham Vet Affairs Med Ctr, Sch Med, DUMC 3469, Durham, NC 27710 USA
[3] Duke Univ, Geriatr Res Educ & Clin Ctr, Durham Vet Affairs Med Ctr, DUMC 3469, Durham, NC 27710 USA
[4] Univ Penn, Sch Nursing, NewCourtland Ctr Transit & Hlth, Room 341 Fagin Hall,418 Curie Blvd, Philadelphia, PA 19104 USA
[5] Med Univ S Carolina, Coll Nursing, Room 508 99 Jonathan Lucas St, Charleston, SC 29425 USA
[6] Univ N Carolina, Sch Nursing, 7460 Carrington Hall, Chapel Hill, NC 27599 USA