1. 1. Goryachev AS, Savin IA, Pucillo MV. Evaluation scale and therapeutic strategy for swallowing disorders in patients with brainstem injuries. Voprosy neyrokhirurgii. 2006; 4: 24-26. (In Russ).
2. 2. Marakhovsky YK, Marakhovsky KY. Gastroenterology and nutrition: a collection of international practical recommendations. Minsk: BelMAPO; 2009; 204 p. (In Russ).
3. 3. Belsey R. Functional disease of the esophagus. J Thoracic and Cardiovasc Surg. 1996; 252: 164-168.
4. 4. Rugin MG. Role of videofluoroscopy in evalution of neurologic dysphagia. Acta Otorhinolaryngol Ital. 2007; 27: 306-316.
5. 5. Hurwitz AL, Duranceau A. Upper esophageal sphincter dysfunction. Pathogenesis and treatment. Am J Dig Dis. 1998; 23: 275-281.