[1] Univ Alabama Birmingham, Dept Psychol, Birmingham, AL 35294 USA
[2] Univ Alabama Birmingham, Sch Med, Birmingham, AL USA
[3] Univ Alabama Birmingham, Div Prevent Med, Birmingham, AL USA
[4] Univ Pittsburgh, Ctr Res Healthcare, Sect Palliat Care & Med Eth, Pittsburgh, PA USA
[5] Univ Alabama Birmingham, Div Hematol & Oncol, Birmingham, AL USA
[6] Univ Alabama Birmingham, Dept Psychiat & Behav Neurobiol, 1670 Univ Blvd,Volker Hall,Suite L107, Birmingham, AL 35294 USA