Erratum to: Dig Dis Sci DOI 10.1007/s10620-012-2337-7

Figure 1a of the article was published with graphic error of negative bar below zero in normal group. Corrected figure is given below.

Fig. 1
figure 1

Expression of acid- and protease-sensitive nociceptors in the esophageal mucosa. Biopsy samples were taken from the esophageal mucosa at 5 mm from esophageal squamocolumnar junction of healthy control subjects (n = 24) and nonerosive reflux disease (NERD) subjects (n = 24). Expression of mRNA for transient receptor potential vanilloid-1 (TRPV1, a), acid-sensing ion channel 3 (ASIC3, b), and protease-activated receptor 2 (PAR2, c) were quantified by real-time reverse transcription-polymerase chain reaction using biopsy mucosal materials and was corrected for that of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) mRNA. *p < 0.05 vs. normal