[1] Eli Lilly & Co, Lilly Res Lab, Indianapolis, IN USA
[2] Univ Minnesota, Sch Med, Minneapolis, MN 55455 USA
[3] Indiana Univ, Sch Med, Indianapolis, IN USA
[4] McLean Hosp, Harvard Med Sch, Cambridge Hlth Alliance, Boston, MA USA
[5] McLean Hosp, Harvard Med Sch, Belmont, MA USA