1. Logemann JA:Evaluation and Treatment of Swallowing Disorders. San Diego: College-Hill Press, 1983
2. Gelfand DW, Richter JE (eds.):Dysphagia: Diagnosis and Treatment. New York: Igaku-Shoin, 1989
3. Linden PL, Siebens AA: Dysphagia: predicting laryngeal penetration.Arch Phys Med Rehab 64:281?284, 1983
4. Horner J, Massey EW: Silent aspiration following stroke.Neurology 38:317?319, 1988
5. Logemann JA:Manual for the Videofluorographic Study of Swallowing. Boston: College-Hill Press, 1986