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Changes in the symptoms of TNSS, such as nasal obstruction (a), rhinorrhea (b), sneezing (c), and nasal itch (d), in the RAG and SAG. Asteriks indicate the time points in which there were significant differences between the two groups (P < 0.05). Only the upper or lower standard deviation is shown for clarity. TNSS total nasal symptom score; RAG real acupuncture group; SAG sham acupuncture group
