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Fig. 2 | Radiation Oncology

Fig. 2

From: Nodal failure patterns and utility of elective nodal irradiation in submandibular gland carcinoma treated with postoperative radiotherapy - a multicenter experience

Fig. 2

ad Regional control curves in patients with pN+, extranodal extension (ENE), pT3–4, and lymphovascular invasion (LVI); and (e) disease-free survival curves in pN(+) patients; treated with extended vs limited elective nodal irradiation (ENI). f Regional control curves in patients with ≥1 adverse factors, and (gj) regional control, distant metastasis-free survival, disease-free survival, and overall survival curves in patients with ≥2 adverse factors treated with extended or limited ENI. (Adverse factors: pN+, ENE, pT3–4, and LVI)

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