[1] Univ Massachusetts, Sch Med, Div Hlth Informat & Implementat Sci, Worcester, MA 01655 USA
[2] Bedford VAMC, VA eHlth Qual Enhancement Res Initiat, Bedford, MA USA
[3] Univ Massachusetts, Sch Med, Div Prevent & Behav Med, Worcester, MA 01655 USA
[4] Bedford VAMC, CHQOER, Bedford, MA USA
[5] Boston Univ, Sch Publ Hlth, Dept Hlth Policy & Management, Boston, MA USA