1. Canadian Association of Emergency Physicians Ultrasonography in the Emergency Department, 1999 Position Statement http://caep.ca/resources/position-statements-and-guidelines/ultrasonography-ed-1999
2. Emergency department targeted ultrasound: 2006 update;Emergency Department Targeted Ultrasound Interest Group, Canadian Association of Emergency Physicians;CJEM.,2006
3. Royal College of Physicians and Surgeons of Canada Objectives of Training in Emergency Medicine http://rcpsc.medical.org/residency/certification/objectives/emergmed_e.pdf
4. Mackey DS Steiner IP National Guidelines: Family Medicine - Emergency Medicine Residency Programs http://www.cfpc.ca/uploadedFiles/Education/FamilyMed-EMResidencyPrograms(1).pdf
5. Council resolution on ultrasound;American College of Emergency Physicians;ACEP News