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Copyright ©The Author(s) 2021.
World J Gastroenterol. Apr 28, 2021; 27(16): 1751-1769
Published online Apr 28, 2021. doi: 10.3748/wjg.v27.i16.1751
Figure 3
Figure 3 Examples of pH-impedance measurements. A: Reflux event recorded during 48 h pH-impedance study; B: Weak acid reflux event in the esophagus without acid exposure in the stomach detected on pH-impedance study (arrows indicating impedance events, star indicating pH drop and acid event).