Brenner, David J.; Hall, Eric J. (2007). "Computed Tomography—an Increasing Source of Radiation Exposure". New England Journal of Medicine. 357 (22): 2277–2284. PMID18046031. डीओआइ:10.1056/NEJMra072149.
Brenner, David J.; Hall, Eric J. (2007). "Computed Tomography—an Increasing Source of Radiation Exposure". New England Journal of Medicine. 357 (22): 2277–2284. PMID18046031. डीओआइ:10.1056/NEJMra072149.