title: Factors affecting rebreathing in T-piece circuits.
mesh_terms: D000769:Anesthesia, Inhalation; D004737:Enflurane / Q000008:administration & dosage*; D006221:Halothane / Q000008:administration & dosage*; D006801:Humans; D012119:Respiration
chemical_list: D004737:Enflurane; D006221:Halothane