Head & neck
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Postoperative chemoradiotherapy (CRT) is considered standard of care in patients with locally advanced head and neck cancer with positive margins and/or extracapsular extension (ECE). ⋯ Postoperative CRT seems underutilized with positive margins and/or ECE and overutilized without positive margins and/or ECE. The CRT was associated with improved OS but the benefit persisted only in the subset with positive margins and/or ECE.