Fig. 4From: Premedication with reformulated simethicone and sodium bicarbonate improves mucosal visibility during upper gastrointestinal endoscopy: a double-blind, multicenter, randomized controlled trialTime required for endoscopic examination (**P < 0.01). The mean overall time for gastroscopy in Group A was significantly shorter than that in Group B (P < 0.01)Back to article page