1. Ahn, B.S.: A study on the scattered dose in portable chest radiography. J. Radiol. Sci. Technol. 23(2), 63–67 (2000)
2. Chest X-ray examination of the patient in the amount of dose recommendation guidelines, KFDA, 2008
3. UNSCEAR: Report, vol. I. Sources and Effects of Ionization radiation, Annex D Medical radiation exposure, UNSCEAR (2000)
4. ICRP: Protection of the Patient in Diagnostic Radiology, Publication 34, Annals of the ICRP 9(2/3), Pergamon Press, Oxford (1982)
5. ICRP: 1990 Recommendations of the International Commission on Radiological Protection. Publication 60, Annals of the ICRP, vol. 21, No.1–3, Pergamon Press, Oxford (1991)