[1] Univ Arkansas Med Sci, Div Behav Med, 756,4301 W Markham St, Little Rock, AR 72205 USA
[2] Univ Arkansas Med Sci, Fay W Boozman Coll Publ Hlth, Dept Hlth Promot & Dis Prevent, Little Rock, AR 72205 USA
[3] Univ Arkansas Med Sci, Fay W Boozman Coll Publ Hlth, Dept Epidemiol, Little Rock, AR 72205 USA
[4] Univ Arkansas Med Sci, Ctr Hlth Serv Res, Dept Psychiat, Little Rock, AR 72205 USA
[5] Univ Arkansas Med Sci, Coll Med, Fac Affairs, Little Rock, AR 72205 USA
[6] Univ Arkansas Med Sci, Coll Med, Dept Psychiat, Little Rock, AR 72205 USA
[7] St Louis Univ, Dept Psychiat & Behav Neurosci, St Louis, MO 63103 USA