Cricopharyngeal achalasia.
D003679:Deglutition; D003680:Deglutition Disorders / Q000209:etiology*; D004194:Disease; D004931:Esophageal Achalasia; D004935:Esophageal Diseases; D006801:Humans; D007817:Laryngeal Cartilages; D010608:Pharyngeal Diseases; D010614:Pharynx
DEGLUTITION DISORDERS/etiology; LARYNGEAL CARTILAGES/diseases; PHARYNX/diseases