Ahn, S., Kim, D., & Park, S. (2018). Long-term Prognosis of Pulpal Status of Traumatized Teeth Exhibiting Contradictory Results between Pulp Sensibility Test and Ultrasound Doppler Flowmetry: A Retrospective Study. Journal of Endodontics. https://doi.org/10.1016/j.joen.2017.12.001 (Original work published 2018)

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)