Neuromuscular disorders of the esophagus.
D004936:Diverticulum, Esophageal; D004931:Esophageal Achalasia / Q000000981:diagnostic imaging; D004945:Esophagoscopy; D004947:Esophagus / Q000294:innervation; D005764:Gastroesophageal Reflux; D006801:Humans; D010608:Pharyngeal Diseases; D011859:Radiography