Radiation therapy left vs right breast compare overall survival

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http://www.sciencedaily.com/releases/2014/10/141020145119.htm

Patients treated with radiation therapy who have tumors in left breast have comparable overall survival to those with tumors in right breast.
Tumor laterality (left-side vs. right-side) does not impact overall survival in breast cancer patients treated with breast-conserving surgery and adjuvant external beam radiation therapy, according to a study.