AUTHOR=Sitaraman Ramakrishnan TITLE=Helicobacter pylori DNA methyltransferases and the epigenetic field effect in cancerization JOURNAL=Frontiers in Microbiology VOLUME=5 YEAR=2014 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2014.00115 DOI=10.3389/fmicb.2014.00115 ISSN=1664-302X