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Table 1 The xerostomia questionnaire (XQ) scores

From: Salivary gland function in nasopharyngeal carcinoma before and late after intensity-modulated radiotherapy evaluated by dynamic diffusion-weighted MR imaging with gustatory stimulation

1. Rate your difficulty in talking due to dryness

2. Rate your difficulty in chewing due to dryness

3. Rate your difficulty in swallowing solid food due to dryness

4. Rate the frequency of your sleeping problems due to dryness

5. Rate your mouth or throat dryness when eating food

6. Rate your mouth or throat dryness while not eating

7. Rate the frequency of sipping liquids to aid swallowing food

8. Rate the frequency of sipping liquids for oral comfort when not eating