title: Simple modification of a medium concentration (Hudson type) oxygen mask improves patient comfort and respiratory monitoring with capnography.
authors.forename: R A
authors.initials: RA
authors.lastname: Langer
mesh_terms: D000758:Anesthesia; D002245:Carbon Dioxide / Q000032:analysis*; D006801:Humans; D008397:Masks; D016343:Monitoring, Intraoperative; D012119:Respiration
chemical_list: D002245:Carbon Dioxide