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Demographic Data
All values are mean ± standard deviations (SD) or frequency.
There are no statistically significant differences between the 2 groups. R group: group that was responsive to SGB. UR group: group that was unresponsive to SGB. SGB: stellate ganglion block. Symptom duration: the period between beginningof olfactory symptoms and the start of SGB. Follow-up duration: the period between the conclusion of SGB treatment and the follow-up telephone survey.
