[1] VA Boston Healthcare Syst, Boston, MA 02130 USA
[2] Boston Univ, Sch Med, Boston, MA 02118 USA
[3] VA Connecticut Healthcare Syst, Pain Res Informat Multimorbld & Educ PRIME Ctr, West Haven, CT 06516 USA
[4] Yale Sch Med, New Haven, CT 06510 USA
[5] Univ Michigan, Sch Med, Ann Arbor, MI 48109 USA
[6] VA Ctr Hlth Informat & Commun CHIC, Indianapolis, IN USA
[7] Indiana Univ Sch Med, Indianapolis, IN 46202 USA
[8] Regenstrief Inst Hlth Care, Indianapolis, IN 46202 USA
[9] VA Ann Arbor Ctr Clin Management Res, Ann Arbor, MI 48105 USA