Gamal Ashour, M. et al. 2022. Swallowing sparing intensity modulated radiotherapy versus standard parotid sparing intensity-modulated radiotherapy for treatment of head and neck cancer: a randomized clinical trial. Acta Oncologica. 61, 2 (Feb. 2022), 134–140. DOI:https://doi.org/10.1080/0284186X.2021.2022198.