title: The De Carvalho test in the demonstration of gastro-oesophageal reflux, of a "silent" hiatus hernia and of reflux oesophagitis, with a review of the factors influencing the gastro-oesophageal junction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004942:Esophagitis, Peptic / Q000000981:diagnostic imaging*; D004943:Esophagogastric Junction / Q000000981:diagnostic imaging*; D005260:Female; D005764:Gastroesophageal Reflux / Q000000981:diagnostic imaging*; D006548:Hernia, Diaphragmatic / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D008297:Male; D008722:Methods; D008875:Middle Aged; D011859:Radiography