title: Assessment of airflow in sleep studies by oronasal CO2 detection.
mesh_terms: D002245:Carbon Dioxide / Q000032:analysis*; D002404:Catheterization / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D012891:Sleep Apnea Syndromes / Q000175:diagnosis*
chemical_list: D002245:Carbon Dioxide