Sam Campbell

Profiles in patient safety: medication errors in the emergency department.

Pat Croskerry, P. Croskerry, M. Shapiro, 2004, Academic emergency medicine : official journal of the Society for Academic Emergency Medicine.

Frequency, determinants and impact of overcrowding in emergency departments in Canada: a national survey.

Michael J. Schull, Kenneth Bond, Brian H. Rowe, 2007 .