Fig. 2From: Premedication with reformulated simethicone and sodium bicarbonate improves mucosal visibility during upper gastrointestinal endoscopy: a double-blind, multicenter, randomized controlled trialCriteria for the mucosal visibility score for each location: a Score 1, no adherent mucus and clear view of the mucosa; b Score 2, a thin coating of mucus without obscured vision; c Score 3, adherent mucus obscuring visionBack to article page