«Patients' awareness of symptoms of dysphagia». Journal of the American Medical Directors Association7 (9): 587–90. November 2006. doi:10.1016/j.jamda.2006.08.002. PMID17095424.
«Patients' awareness of symptoms of dysphagia». Journal of the American Medical Directors Association7 (9): 587–90. November 2006. doi:10.1016/j.jamda.2006.08.002. PMID17095424.