1. The Interim Report No. 2 of Investigative Research on Patient Exposure Doses in Diagnostic X-ray Examinations
2. 2)ICRP Publication 93. Managing patient dose in digital radiology, 2003.
3. 3)IEC62494-1. Medical electrical equipment－Exposure index of digital X-ray imaging systems, Part 1: Definition and requirements for general radiography, Ed. 1, 2008.
4. 4)IEC62220-1. Medical electrical equipment－Characteristics of digital X-ray imaging devices, Part 1: Determination of the detective quantum efficiency, 2003.
5. 5)Shepard SJ, Wang J, Flynn M, et al. An exposure indicator for digital radiography: AAPM Task Group 116 (executive summary). Med Phys 2009; 36(7): 2898-2914.