[1] Brown Univ, Sch Publ Hlth, Providence, RI USA
[2] Providence VA Med Ctr, Providence, RI USA
[3] Tuscaloosa VA Med Ctr, Res & Dev Serv, Tuscaloosa, AL USA
[4] Univ Alabama, Dept Psychol, Tuscaloosa, AL USA
[5] Univ Alabama, Alabama Res Inst Aging, Tuscaloosa, AL USA
[6] Univ Alabama Birmingham, Div Gerontol Geriatr & Palliat Care, Dept Med, Birmingham, AL USA
[7] Johns Hopkins Sch Nursing, Baltimore, MD USA
[8] Icahn Sch Med Mt Sinai, New York, NY USA
[9] Brown Univ, Sch Publ Hlth, 21 S Main St, Providence, RI 02912 USA