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Fig. 4 | Radiation Oncology

Fig. 4

From: Improve the dosimetric outcome in bilateral head and neck cancer (HNC) treatment using spot-scanning proton arc (SPArc) therapy: a feasibility study

Fig. 4

a The average estimated delivery time per fraction varies along with the ELST with p-values on the top of the columns. b Normal tissue complication probability (NTCP) model for parotid salivary flow (solid curve). The NTCP value denotes the probability of a reduction in salivary flow to < 25% of the pretreatment flow at ≤6 months after radiotherapy

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