Fig. 3From: Effects of different doses of magnesium sulfate on pneumoperitoneum-related hemodynamic changes in patients undergoing gastrointestinal laparoscopy: a randomized, double-blind, controlled trialChanges in serum vasopressin during the laparoscopic gastrointestinal surgery. Values are expressed as mean (SD). *P<0.05 when compared with the control group; #P <0.05 when compared with group LBack to article page