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Lim K, et al. Image guidance...In: Viswanathan et al., eds. Gyn Radiat Oncol. Springer 2011
Chan P, et al. IJROBP 2008; van de Bunt L, et al. Radiother Oncol 2008
Margin recommendations for ITV range from 10 – 24 mm
ITV – Internal Target Volume
= CTV + margin for internal motion & deformation