1. AAPM. AAPM Medical Physics Resource Page 2012 http://www.aapm.org/links/medphys/default.asp#lists
2. R. Kulasekere MedPhysBoardPreparation 2012 http://groups.yahoo.com/neo/groups/medphysboardpreparation/info
3. AAPM. AAPM [homepage on the Internet] 2012 http://www.aapm.org/
4. RSNA Education RSNA/AAPM online physics modules 2012 http://www.rsna.org/education/physics.cfm
5. The Sprawls resources for study, review, reference and teaching physics and technology of medical imaging in the collaborative teaching network 2012 http://www.sprawls.org/resources/