Erratum to: Dig Dis Sci DOI 10.1007/s10620-016-4375-z

The original version of this article unfortunately contained a mistake. Figures 6 and 8 were interchanged. The corrected Figs. 6 and 8 are given here. The original article was corrected.

Fig. 6
figure 6

a Panoramic face mask. b Endoscopy mask. c DEAS mask

Fig. 8
figure 8

a Gastrolaryngeal tube. b Goudra bite block. c Safety guard bite block. Written permission/consent to publish the images is obtained from the patients were appropriate (Figs. 8, 9)