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Nomograms for the individualized prediction of radiation-related esophageal fistula in esophageal cancer patients. Gender 0: male, 1: female. Stenosis 0: no esophageal stenosis, 1: esophageal stenosis. Ulcerative-tumor 0: non-ulcerative tumor, 1: ulcerative tumor. PLR 0: PLR ≤153, 1: PLR >153. PLR, platelet-to-lymphocyte ratio.
