title: Intraoral air pressure variability in esophageal speakers.
mesh_terms: D000328:Adult; D000368:Aged; D000399:Air Pressure; D006801:Humans; D008297:Male; D008875:Middle Aged; D009055:Mouth / Q000502:physiology*; D013071:Speech, Alaryngeal; D013072:Speech, Esophageal