[1] Rutgers Robert Wood Johnson Med Sch, New Brunswick, NJ USA
[2] Duke Canc Inst, Canc Prevent Detect & Control Res Program, Durham, NC USA
[3] Duke Univ, Med Ctr, Dept Community & Family Med, Durham, NC 27706 USA
[4] Univ Washington, Fred Hutchinson Canc Res Ctr, Seattle, WA 98195 USA
[5] Brown Univ, Alpert Med Sch, Dept Family Med, Providence, RI 02912 USA
[6] Harvard Univ, Sch Publ Hlth, Dept Social & Behav Sci, Boston, MA 02115 USA
[7] Duke Univ, Med Ctr, Dept Med, Duke Palliat Care, Durham, NC 27706 USA
[8] Durham VA Med Ctr, Hlth Serv Res & Dev Serv, Durham, NC USA