What does the U stand for in Pqrstu?

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Tags

1. #palliative
2. #definition
3. #pqrstu
4. #evaluation
5. #stands
6. #region
7. #medicine
8. #precipitates
9. #radiating
10. #severity
11. #happened
12. #suggest
13. #quality
14. #before
15. #emergency