1. Australasian College for Emergency Medicine Policy on the use of bedside ultrasound by emergency physicians 2006 https://www.acem.org.au/getattachment/797900b1-8d0d-40f7-887a-6cccb3ba7d6c/Policy-on-the-Use-of-Bedside-Ultrasound-by-Emergen.aspx
2. The College of Emergency Medicine Ultrasound training 2009 http://www.collemergencymed.ac.uk/Training-Exams/Training/Ultrasound%20training
3. Hong Kong College of Emergency Medicine Policy on the use of bedside focused emergency ultrasound 2010 http://www.hkcem.com/html/courses/usg/files/Policy/Emergency%20Ultrasound%20Policy%20Statement%20HKCEM%2020.pdf
4. Emergency department targeted ultrasound: 2006 update;Socransky;CJEM,2006