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. Author manuscript; available in PMC: 2014 May 21.
Published in final edited form as: J Pediatr Gastroenterol Nutr. 2006 Jul;43(1):35–41. doi: 10.1097/01.mpg.0000226368.24332.50

FIG. 1.

FIG. 1

Manometric determination of LES high-pressure zones during the pull through. Three manometric ports are shown with concurrent electrocardiogram and thoracic and abdominal respiration. The length of LES (1.0 cm) was determined as the distance in centimeters (0.5-cm increments) between the inferior and superior limits of the high-pressure zones. The determination of UES high-pressure zones was also done in a similar fashion.