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Box plots of perceived pain score during the study period showing median and interquartile range (25–75). BL, before starting study drug infusion; LAI, after initial LA injection; PP3, immediately after the CVCI, the patient was asked to report the peak pain experienced during the procedure; PP10, 10 min after completion of the procedure; and PP60, 60 min after completion of the procedure. a P < 0.016 versus placebo.
