Fig. 1From: Risk factors for esophagitis after hypofractionated palliative (chemo) radiotherapy for non-small cell lung cancerRisk of esophagitis (yes/no; grade 1–3 combined) after different maximum doses to the esophagus (< 25 Gy, 25–29.9 Gy, 30–34.9 Gy, 35–39.9 Gy, 40 Gy or more)Back to article page