title: Gas flow through the nasal inhalation valve in nitrous oxide conscious sedation.
mesh_terms: D000328:Adult; D000766:Anesthesia, Dental / Q000295:instrumentation*; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D006801:Humans; D008297:Male; D009609:Nitrous Oxide / Q000008:administration & dosage*; D012212:Rheology
chemical_list: D009609:Nitrous Oxide