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Comparison of the visual analogue scale (VAS) scores at rest and during coughing postoperatively in RISS and Control group. (A) VAS score at rest (upon admission to the post-anesthesia care unit (PACU), postoperative 6h, 12h, 24h, 48h. (B) VAS score during coughing (upon admission to the post-anesthesia care unit (PACU), postoperative 6h, 12h, 24h, 48h. The Orange lines represent the RISS group, and the blue lines represent the Control group.
