Here you will find resources that are either OERs that have a Creative Commons (CC) license or media that is currently in the Public Domain (usually the copyright has expired). When using these resources, check the licenses or verify that the information is in the public domain.
Haussmann, J., Corradini, S., Nestle-Kraemling, C., Bölke, E., Njanang, F., Tamaskovics, B., Orth, K., Ruckhaeberle, E., Fehm, T., Mohrmann, S., Simiantonakis, I., Budach, W., & Matuschek, C. (2020). Recent advances in radiotherapy of breast cancer. Radiation oncology, 15(1), 71. https://doi.org/10.1186/s13014-020-01501-x
Early and locally advanced breast cancer: diagnosis and management: evidence reviews for breast radiotherapy. July 2018. London: National Institute for Health and Care Excellence (NICE); 2018 Jul 18. (NICE Guideline, No. 101.)
Skubish, S., Starrs, C., & McDonagh, D. (2021). Exploring opportunities & pathways for advanced practice radiation therapy roles in the United States. Technical innovations & patient support in radiation oncology, 17, 59–62. https://doi.org/10.1016/j.tipsro.2021.01.005