Pain Research and Management / 2016 / Article / Fig 3

Clinical Study

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

Figure 3

Postoperative morphine consumption (a) at 2, 6, and 24 h after surgery and numeric rating scores of fatigue (b) before surgery and at 2, 6, and 24 h after surgery. Data are shown as means ± standard deviation. .