Integrating Information Objects and Annotations in the Notional DoD-VA iEHR User Experience: Results from a randomized controlled trial on efficiency and accuracy of problem assessment and intervention specification. - Jonathan R. Nebeker; Charlene R. Weir; James L. Hellewell; Molly Leecaster; Frank Drews; Robyn Barrus; Daniel Bolton; Gopi Penmetsa; Amelia E. Underwood (AMIA, 2013)