Progress in Medical Physics Progress in Medical Physics 2508-4453 Korean Society of Medical Physics 10.14316/pmp.2021.32.3.82 pmp-32-3-82 Erratum Erratum: Proton Therapy Review: Proton Therapy from a Medical https://orcid.org/0000-0002-1121-0260 Lee Se Byeong Department of Radiation Oncology &amp; Proton Therapy Center, National Cancer Center, Goyang, Korea Corresponding author Se Byeong Lee (sblee@ncc.re.kr), Tel: 82-31-920-1729, Fax: 82-31-920-0149 2021 30 9 2021 32 3 82 82 Copyright © 2021 Korean Society of Medical Physics 2021 This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. <p>Progress in Medical Physics 31(3), September 2020</p> <p><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.14316/pmp.2020.31.3.99">https://doi.org/10.14316/pmp.2020.31.3.99</ext-link></p> <p>In the originally published version of this article, there were some missing words in the Title, which sould be properly revised as follows:</p> <p><bold>Before correction:</bold></p> <p>Proton Therapy Review: Proton Therapy from a Medical</p> <p><bold>After correction:</bold></p> <p>Proton Therapy Review: Proton Therapy from a Medical Physicist’s View</p> <p>We apologize for our mistake and any inconvenience this may have caused.</p> </sec> </body> </article>