Warren, D W Oral port constriction, nasal resistance, and respiratory aspects of cleft palate speech: an analog study. [electronic resource] - The Cleft palate journal Jan 1967 - 38-46 p. digital Publication Type: Journal Article ISSN: 0009-8701 Subjects--Topical Terms: Cleft PalateHumansManometry--instrumentationModels, TheoreticalOscillometryPharynx--physiopathologyRespirationSpeech DisordersTape Recording