Hand washing: I didn't work in this area directly -- many of my colleagues did, however. The principal output of their work was the Human Factors Hand Hygiene Toolkit at http://www.handhygiene.ca/English/Tools/Pages/Human-Factors-...
Positive patient ID: The PPID work that I've been exposed to was targeted at in-hospital evaluations of various vendor systems; I'm not aware of it having been published externally. If you're interested I can follow up with members of the team who worked on this to see if anything public came out of it.
Medication errors: Lots of work here. Presented link-list style: http://www.hubmed.org/display.cgi?uids=20724398 http://www.hubmed.org/display.cgi?uids=22103759 http://www.hubmed.org/display.cgi?uids=20427310 http://www.patientsafetyinstitute.ca/English/research/cpsiRe...