[1] Brown Univ, Sch Med, Dept Med, Providence Vet Affairs Med Ctr,Div Gen Internal M, Providence, RI 02908 USA
[2] Brown Univ, Sch Med, Dept Community Hlth, Providence, RI 02908 USA
[3] Rhode Isl Hosp, Providence, RI USA
[4] Providence Vet Affairs Med Ctr, Res Serv, Program Integrate Psychosocial & Hlth Serv, Providence, RI USA
[5] Virginia Commonwealth Univ, Wilder Sch Govt & Publ Affairs, Richmond, VA USA
[6] Sam Houston State Univ, Dept Psychol, Huntsville, TX 77340 USA