1. Acid secretion from an esophageal inlet patch demonstrated by ambulatory pH monitoring 
Anthony R. Galan, David A. Katzka, Donald O. Castell 
Gastroenterology 
Volume 115, Issue 6, Pages (December 1998)
DOI: /S (98)
Copyright © 1998 American Gastroenterological Association Terms and Conditions

2. Fig. 1
Esophagogram showing a stricture (arrowheads) in the proximal esophagus, at the level of the heterotopic gastric mucosa seen by esophagogastroduodenoscopy.
Gastroenterology  , DOI: ( /S (98) )
Copyright © 1998 American Gastroenterological Association Terms and Conditions

3. Fig. 2
One hour from a 24-hour ambulatory pH monitor tracing of the proximal and distal esophagus after a meal. Reading from the distal esophagus shows primarily pH >4 with only one transient decrease in pH, whereas recording from the proximal esophagus shows repeated drops in pH consistent with frequent episodes of acid exposure.
Gastroenterology  , DOI: ( /S (98) )
Copyright © 1998 American Gastroenterological Association Terms and Conditions