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. Author manuscript; available in PMC: 2014 Jun 2.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2010 Mar 1;76(3 0):S58–S63. doi: 10.1016/j.ijrobp.2009.06.090

Fig. 1.

Fig. 1

Stimulated whole mouth salivary measurements vs. mean parotid gland dose. Summary of Washington University stimulated salivary results at 6 and 12 months of follow-up. Data showed that when either gland was spared (<20 Gy mean dose), ratio of post-radiotherapy (RT) to pre-RT flow is usually >0.25. Note, if either gland was highly spared (<10–15 Gy), resulting salivary function will usually be high, regardless of irradiation level of the other parotid gland (data originally presented in Blanco et al. [6], but redrawn here).