title: Normal pyloric sphincter competence evaluation as based on 148 T-tube cholangiograms.
mesh_terms: D002758:Cholangiography; D005764:Gastroesophageal Reflux / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D011708:Pylorus / Q000502:physiology* / Q000503:physiopathology; D012189:Retrospective Studies