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Table 3 Late toxicities of proton beam therapy

From: High-dose proton beam therapy for sinonasal mucosal malignant melanoma

Type Grade Number (%)
Nasal congestion 1 6
Epistaxis 1-2 3
Watering eyes 1-2 8
Osteonecrosis 2 5
Optic nerve disorder 4 3
Middle ear inflammation 2 7