Fig. 4From: Pre-warming the Streamlined Liner of the Pharynx Airway (SLIPA™) improves fitting to the laryngeal structure: a randomized, double-blind studyPostoperative throat pain (visual analog scale [VAS]). Postoperative throat pain, determined using the VAS, was lower in Group W than in Group R. Box-and-whisker plot (median, interquartile range, and range) of the VAS in Group R and Group W. Group R: the Streamlined Liner of the Pharynx Airway (SLIPA) was kept at room temperature; Group W group: the SLIPA was pre-warmed to 37 ° C. *P = 0.006Back to article page