 The investigators hypothesize that the clinical learning curve in airways with predictors for difficult intubation will be shorter for study subjects operators who undergo preclinical manikin training under simulated difficult airway conditions compared to Study subjects operators who do not receive this training. The clinical learning curve is characterized by procedure times and first attempt success rates on successive uses of the Airtraq Avant and Wireless Monitor System in patients with at least one predictor for difficult intubation. 