title: The efficiency of the Magill attachment during intermittent positive pressure ventilation.
mesh_terms: D000328:Adult; D000776:Anesthesiology / Q000295:instrumentation*; D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007385:Intermittent Positive-Pressure Ventilation; D008875:Middle Aged; D011175:Positive-Pressure Respiration
chemical_list: D002245:Carbon Dioxide