Researchers at the Fred Hutchinson Cancer Research Center and the QIMR Berghofer Medical Research Institute (Australia) found that 4 genetic variants could increase the risk of Barrett’s esophagus and esophageal cancer development.
http://bionews-tx.com/news/2014/02/14/study-identifies-4-genetic-variants-linked-to-esophageal-cancer-and-barretts-esophagus-non-texas-article/
4 Newly Identified Genetic Variants Enhance Progression of Barrett’s Esophagus and Esophageal Cancer