The acid reflux test for gastroesophageal reflux.
D002648:Child; D004943:Esophagogastric Junction / Q000503:physiopathology; D005764:Gastroesophageal Reflux / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D006851:Hydrochloric Acid; D007223:Infant; D008722:Methods; D011312:Pressure; D011859:Radiography
D006851:Hydrochloric Acid