Priyanka, R. P. Kotian, and N. C. Panakkal, “COMPARISON OF SURFACE RADIATION DOSE TO THE GONADS BY RADIOGRAPHIC EXAMINATION OF THE LUMBAR SPINE USING COMPUTED RADIOGRAPHY AND DIRECT DIGITAL RADIOGRAPHY”, Asian J Pharm Clin Res, vol. 10, no. 12, pp. 52–55, Dec. 2017.