Dog achalasia and the lower esophageal sphincter.
D000818:Animals; D004283:Dog Diseases; D004285:Dogs; D004931:Esophageal Achalasia / Q000209:etiology / Q000662:veterinary*; D004941:Esophagitis / Q000209:etiology; D004947:Esophagus / Q000473:pathology* / Q000503:physiopathology*; D006548:Hernia, Diaphragmatic / Q000150:complications