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. 2014 Aug 30;9:193. doi: 10.1186/1748-717X-9-193

Figure 4.

Figure 4

Comparison of dose distribution in organs at risk for volumetric modulated arc therapy (VMAT) and non-coplanar intensity modulated radiotherapy (IMRT; 7-, 11-, and 15-beam). IL, ipsilateral; CL, contralateral; Dmax, maximum dose; Dmean, mean dose; ON, optic nerve; OC, optic chiasm; LG, lachrymal gland; PG, parotid gland.