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Postoperative pain intensity for both groups (according to NRS) measured daily (mornings, noon, and evenings) until POD 7 (mean ± SD; p<0.05 at every measuring point except for POD 6 at noon and in the evening).
CT, chest tube; NCT, non–chest tube; NRS, numerical rating scale; POD, postoperative day;
SD, standard deviation; 0 = day of surgery
