A dynamic test of sphincter strength: its application to the lower esophageal sphincter.
D000818:Animals; D004285:Dogs; D004943:Esophagogastric Junction / Q000502:physiology* / Q000503:physiopathology*; D005764:Gastroesophageal Reflux / Q000503:physiopathology*; D006801:Humans; D066298:In Vitro Techniques; D008962:Models, Theoretical