[1] Univ Calif San Diego, Dept Psychiat, San Diego, CA 92103 USA
[2] Vet Med Res Fdn, San Diego, CA USA
[3] Vet Affairs San Diego Healthcare Syst, San Diego, CA USA
[4] Univ Calif San Diego, Stein Inst Res Aging, Ctr Hlth Aging, San Diego, CA 92093 USA
[5] San Diego State Univ, Univ Calif San Diego Joint Doctoral Program Clin, San Diego, CA 92182 USA