B. Measurements We will record morphometric characteristics of all patients. The quality of the airway will be evaluated using the Mallampati, thyromental distance, interincisor gap distance, neck mobility and circumference, and sternomental distance. All intubators will note their laryngoscopy experience level (Cormack-Lehane Scale modified by Yentis, POGO score). Additionally, the anesthesiologist will provide a personal, subjective opinion of a possible difficult laryngoscopy and intubation based on scale from 1 to 5. Any evidence of fogging on the lens will be noted.