. 2017 Apr 24;2017:8362613. doi: 10.1155/2017/8362613
Copyright © 2017 Paul A. Cameron and Franzjosef Schweiger.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Black esophagus on endoscopy.