[1] Roudebush VAMC, VA Hlth Serv Res & Dev Ctr Hlth Informat & Commun, Indianapolis, IN 46202 USA
[2] Indiana Univ Sch Med, Dept Med, Div Gen Internal Med & Geriatr, Indianapolis, IN 46202 USA
[3] Regenstrief Inst Inc, IU Ctr Hlth Serv Res, Indianapolis, IN 46202 USA
[4] Harvard Med Sch, Boston, MA USA
[5] Amer Diabet Assoc, Arlington, VA USA
[6] Univ S Florida, Morsani Coll Med, Dept Family Med, Lehigh Valley Hlth Network, Allentown, PA USA
[7] Rutgers Robert Wood Johnson Med Sch, Dept Family Med & Community Hlth, Div Res, New Brunswick, NJ USA