Yoon, S. ., Lee, C. ., Park, J. ., Goo, J. ., & Park, J. . (1969). <i>In-vivo</i> Visualization of Iron Oxide Enhancement in Focal Pulmonary Inflammatory Lesions Using a Three-Dimensional Radial Gradient-Echo-Based Ultrashort Echo Time Sequence: A Preliminary Study. Korean Journal of Radiology, 19(1), 153-157. https://doi.org/10.3348/kjr.2018.19.1.153 (Original work published 1969)

Chae, K. ., Goo, J. ., Ahn, S. ., Yoo, J. ., & Yoon, S. . (1969). Application of Deconvolution Algorithm of Point Spread Function in Improving Image Quality: An Observer Preference Study on Chest Radiography. Korean Journal of Radiology, 19(1), 147-152. https://doi.org/10.3348/kjr.2018.19.1.147 (Original work published 1969)