title: Increased respiratory resistance after ultrasonic humidification of anesthesia gas.
mesh_terms: D000328:Adult; D006801:Humans; D006813:Humidity; D007442:Intubation, Intratracheal; D008722:Methods; D009609:Nitrous Oxide; D012143:Respiratory Physiological Phenomena; D013514:Surgical Procedures, Operative; D013874:Thiopental; D014465:Ultrasonics
chemical_list: D013874:Thiopental; D009609:Nitrous Oxide