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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2011 Jun 2;82(3):1108–1114. doi: 10.1016/j.ijrobp.2011.04.020

Figure 2.

Figure 2

The fitted incidence of grade 4 xerostomia (salivary flow 25% or less relative to pre-RT) at three months as a function of mean dose to spared parotid gland; BCCA data. Error bars on dose values are standard deviations; error bars on incidence values are 68% confidence limits. The dashed line indicates the estimated rate of xerostomia at 20 Gy, 42%.