1. Ultrasound for the detection of intraperitoneal fluid: the role of trendelenberg positioning;Adams;Am J Emerg Med,1999
2. Emergency ultrasound guidelines 2001;American College of Emergency Physicians;Ann Emerg Med,2001
3. American Institute of Ultrasound in Medicine. Official statement: training guidelines for physicians who evaluate and interpret diagnostic ultrasound examinations; 1997.
4. Australasian College for Emergency Medicine. Policy document: credentialing for ED ultrasonography; 2000. URL: http://www.acem.org.au/open/documents/ultrasonography.htm.
5. Australasian Trauma Society. Australasian Trauma Society position on credentialing for trauma ultrasound for trauma specialists; 1998. URL: http://www.atsoc.com.au/policy.htm.