[1] Washington State Univ, Elson S Floyd Coll Med, Dept Community & Behav Hlth, Spokane, WA USA
[2] Univ Sao Paulo, Dept & Inst Psychiat, Old Age Res Grp, Programa Terceira Idade,PROTER,Sch Med, Sao Paulo, Brazil
[3] Univ Fed Estado Rio de Janeiro, Postgrad Program Neurol, Rio De Janeiro, Brazil
[4] Vrije Univ, Amsterdam Univ Med Ctr, Dept Med Psychol, De Boelelaan 1117, NL-1081 HV Amsterdam, Netherlands
[5] SUNY Upstate Med Univ, Dept Med, Syracuse, NY USA
[6] Penn State Univ, Coll Med, Dept Med, Hershey, PA USA
[7] Univ Pittsburgh, Sch Med, Dept Psychiat, Pittsburgh, PA USA