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Figure 1: The probe node .
Figure 1 footnotes : -.
Figure 2: The hypopharyngeal multichannel intraluminal impedance
pH-monitoring tracing .
Figure 2 footnotes : Impedance is represented by a colorimetric
scale from 800 ohms (white color, low impedance) to 10,000 ohms (blue
color, high impedance). The grey color consists of a non-physiological
impedance value >10,000 ohms, which is a parasitic tracing.
From 8:00 to 8:52, the tracing revealed gaseous reflux episodes related
to belching. From 8:52, a grey area appeared at the Z4 impedance
segment, which consists of the node development.
Figure 3: The Folded probe .
Figure 3 footnotes : -.