Wu, W., et al. Hypomethylation of Noncoding DNA Regions and Overexpression of the Long Noncoding RNA, AFAP1-AS1, in Barrett's Esophagus and Esophageal Adenocarcinoma. Gastroenterology. 2013 Jan 16. pii: S0016-5085(13)00076-0. doi: 10.1053/j.gastro.2013.01.019.