Fig. 5From: A randomised crossover comparison of two endotracheal tube introducers: the FROVA and the Flexible Tip Bougie for GlideScope intubation of a difficult airway manikin by infrequent intubatorsDifficulty scores (0 = very easy, 10 = very difficult). Left graph: passage of ETI. Right graph: passage of ETT over ETIBack to article page