Kim, Gha-Jung, and Bon-Yeoul Koo. “Study On Reduction of Exposure Dose through Development of Field Display Devices of Radiation Fluoroscopy”. International Journal of Engineering & Technology, vol. 7, no. 3.24, Aug. 2018, pp. 349-52, https://doi.org/10.14419/ijet.v7i3.24.22683.