title: The esophagus: 1967 to 1969. I.
mesh_terms: D000818:Animals; D004931:Esophageal Achalasia; D004935:Esophageal Diseases; D004947:Esophagus / Q000033:anatomy & histology / Q000502:physiology / Q000503:physiopathology; D005764:Gastroesophageal Reflux; D006548:Hernia, Diaphragmatic; D006801:Humans; D013035:Spasm