title: The De Carvalho and acid-barium tests in the demonstration of an unsuspected gastro-oesophageal reflux and its related oesophagitis.
abstract: Importance of the water and acid-barium tests (De Carvalho and Donner tests) was proved in a large series of cases demonstrating an unknown gastro-oesophageal reflux and an associated oesophagitis.
mesh_terms: D001466:Barium Sulfate; D002986:Clinical Trials as Topic; D004942:Esophagitis, Peptic / Q000000981:diagnostic imaging*; D005764:Gastroesophageal Reflux / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging*; D006801:Humans; D006851:Hydrochloric Acid; D011859:Radiography; D014867:Water
chemical_list: D014867:Water; D001466:Barium Sulfate; D006851:Hydrochloric Acid