Pain Research and Management / 2016 / Article / Fig 2

Clinical Study

Effect of Intravenous High Dose Vitamin C on Postoperative Pain and Morphine Use after Laparoscopic Colectomy: A Randomized Controlled Trial

Figure 2

Pain scores at rest (a) and during coughing (b) by numeric rating scale at 2, 6, and 24 h after surgery (mean ± standard deviation). .