[1] VA Boston Healthcare Syst, Anesthesiol Crit Care & Pain Med Serv, Boston, MA 02130 USA
[2] Boston Univ, Dept Psychiat, Sch Med, Boston, MA USA
[3] VA Connecticut Healthcare Syst, Dept Psychol, West Haven, CT USA
[4] Yale Sch Publ Hlth, New Haven, CT USA
[5] VA Connecticut Healthcare Syst, Pain Res Informat Multimorbid & Educ ( PRIME) Hlt, Ctr Innovat, West Haven, CT USA
[6] Yale Sch Med, Dept Psychiat, New Haven, CT USA
[7] Yale Sch Med, Dept Psychiat Psychol Neurol, New Haven, CT USA
[8] Roudebush VA Med Ctr, Ctr Hlth Informat & Commun Hlth Serv Res & Dev, Ctr Innovat, Indianapolis, IN USA
[9] Indiana Univ Sch Med, Dept Med, Indianapolis, IN USA
[10] Yale Sch Med, New Haven, CT USA
[11] Univ Calif San Francisco, Inst Hlth & Aging, San Francisco, CA USA
[12] VA Minneapolis Healthcare Syst, Ctr Chron Dis Outcomes Res Hlth Serv Res & Dev, Ctr Innovat, Minneapolis, MN USA
[13] Univ Minnesota, Dept Med, Box 736 UMHC, Minneapolis, MN 55455 USA
[14] VA Ann Arbor, Ctr Innovat, Ctr Clin Management Res Hlth Serv Res & Dev, Ann Arbor, VA USA
[15] Univ Michigan, Sch Publ Hlth, Dept Hlth Behav & Hlth Educ, Ann Arbor, MI 48109 USA
[16] Univ Michigan, Sch Med, Dept Internal Med, Ann Arbor, MI USA
[17] VA Connecticut Healthcare Syst, Dept Med, West Haven, CT USA
[18] Yale Sch Med, Dept Med, New Haven, CT USA
[19] Yale Sch Med, Dept Emergency Med, New Haven, CT USA