title: Letter: Awareness during anaesthesia.
mesh_terms: D000758:Anesthesia; D003071:Cognition; D004357:Drug Synergism; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D007362:Intensive Care Units; D009125:Muscle Relaxants, Central / Q000008:administration & dosage; D011175:Positive-Pressure Respiration
chemical_list: D006993:Hypnotics and Sedatives; D009125:Muscle Relaxants, Central