Reducing Xerostomia by Comprehensive Protection of Salivary Glands in Intensity-Modulated Radiation Therapy with Helical Tomotherapy Technique for Head-and-Neck Cancer Patients: A Prospective Observational Study

Figure 3

Unstimulated saliva flow rates versus stimulated saliva flow rates at different postradiotherapy time points (0, 1, 3, 6, 12, and 18 months). (Vertical bars represent standard deviation.)