1. 1. Corbin-Lewis K, Liss JM: Physiological bases of compensatory treatment strategies. In: Clinical anatomy and physiology of the swallow mechanism. 2nd ed. S4Carlisle, Stamford, CT, 2015. pp. 257–281.
2. 2. Tasker RC: Positioning the breathing but unresponsive patient: what is the evidence? Arch Dis Child 2016;101:508–509. PMID:26906069, DOI:10.1136/archdischild-2015-309362
3. 3.Fukumura N, Makigami K, Fukumura H, Taguchi M, Osawa M, Motegi A: Effect of flat lateral position on oral feeding in severe dysphagia patients—evaluation of swallowing and activities of daily living at discharge from the rehabilitation unit [in Japanese]. Sogo Rehabil 2012;40:1335–1343.
4. 4. Logemann JA, Kahrilas PJ, Kobara M, Vakil NB: The benefit of head rotation on pharyngoesophageal dysphagia. Arch Phys Med Rehabil 1989;70:767–771. PMID:2802957
5. 5. Kunieda K, Ohno T, Fujishima I, Hojo K, Morita T: Reliability and validity of a tool to measure the severity of dysphagia: the Food Intake LEVEL Scale. J Pain Symptom Manage 2013;46:201–206. PMID:23159683, DOI:10.1016/j.jpainsymman.2012.07.020