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Acute breast pain at the end of radiotherapy has been statistically significantly lower in arm 1 vs arm 2. Acute breast pain at 1-month follow-up has been comparable between the study arms, with no statistically significant difference. At the 3-month follow-up, acute breast pain was similar in both arms. In all arms, no acute lung toxicities have been reported.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>Acute adverse events have been comparable between ultra-hypofractionation and hypofractionation.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s43046-025-00280-4","type":"journal-article","created":{"date-parts":[[2025,5,3]],"date-time":"2025-05-03T10:29:55Z","timestamp":1746268195000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Acute toxicity outcomes in Egyptian early-stage breast cancer: ultra-hypofractionated versus hypofractionated radiotherapy"],"prefix":"10.1186","volume":"37","author":[{"given":"Ahmed","family":"Magdy","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emad","family":"Sadaka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rasha","family":"Abd el Ghani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taha","family":"Ahmed","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,5,3]]},"reference":[{"issue":"1","key":"280_CR1","doi-asserted-by":"publisher","first-page":"7","DOI":"10.3322\/caac.21551","volume":"69","author":"RL Siegel","year":"2019","unstructured":"Siegel RL, Miller KD, Jemal A. 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