the influence of the proximal selective vagotomy ( psv ) with mobilisation of the esophagus of 6 cm or up to the upper thorax apertura on esophageal motility in a first group and mobilisation of 2 or 7 cm on the lower esophageal sphincter tone in a second group was investigated in canine experiments .
C0014876
esophagus
C0227192
lower esophageal sphincter