1. Hanks P. Collins Dictionary of the England Language. 1st ed Glasgow: William Collins Sons and Co; 2004;407.
2. Available from: http://www.irpa.net/members/IRPA-Guiding%20Principles%20on%20RP%20Culture%20-2014%20.pdf.
3. Hart D, Wall , BF , Hillier MC, Shrimpton PC. Frequency and collective dose for medical and dental X-ray examinations in the UK, 2008 Chilton: Health Protection Agency; 2010;HPA-CRCE-012.
4. Use of Diagnostic Imaging Studies and Associated Radiation Exposure for Patients Enrolled in Large Integrated Health Care Systems, 1996-2010
5. Effective Doses in Radiology and Diagnostic Nuclear Medicine: A Catalog