I'm compiling a little bibliography for our group on EMR's
Here goes:
This article was the original justifcation for NAPCI.
This one focuses on patient safety.
And an interesting view of the physician-patient communications tools .. and another on how physicians who use an EMR communicate. ... and Clinical Reminders work .. documentation may be better (These are in JAMIA - so may require you to log in)
... how to evaluate e-prescribing
Here's David Bates' slide set on EHR's