1. American College of Emergency Physicians Guidelines for Care of Children in the Emergency Department http://www.acep.org/Content.aspx?id=29134
2. American Academy of Pediatrics Section on Radiology. What Every Pediatrician Should Know http://www.aap.org/en-us/about-the-aap/Committees-Councils-Sections/Section-on-Radiology/Pages/What-Every-Pediatrician-Should-Know.aspx
3. American College of Radiology ACR Statement on Recent Studies Regarding CT Scans and Increased Cancer Risk http://www.acr.org/About-Us/Media-Center/Position-Statements/Position-Statements-Folder/ACR-Statement-on-Recent-Studies-Regarding-CT-Scans-and-Increased-Cancer-Risk
4. U.S. Food and Drug Administration Pediatric X-ray Imaging http://www.fda.gov/Radiation-EmittingProducts/RadiationEmittingProductsandProcedures/MedicalImaging/ucm298899.htm
5. U.S. Nuclear Regulatory Commission ALARA http://www.nrc.gov/reading-rm/basic-ref/glossary/alara.html