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Self-evaluated anxiety and pain during peripheral intravenous cannulation using a visual analog scale for anxiety (VAS-A, 0, no anxiety; 10, worst imaginable anxiety) and for pain (VAS-P, 0, no pain; 10, worst imaginable pain) in the clear control group (n = 24) and green group (n = 23). Medians, quartiles, and ranges are represented by boxes with corresponding individual values on the VAS-A (A) and VAS-P (B). * p = 0.011.
