Fig. 3From: The diagnostic value of pepsin detection in saliva for gastro-esophageal reflux disease: a preliminary study from ChinaComparison of salivary pepsin results with 24-h MII-pH monitoring combined with endoscopy. GERD: gastro-esophageal reflux disease, 24-h MII-pH: 24-h multichannel intraluminal impedance pHBack to article page