The publisher of a controversial and much-criticized study suggesting genetically modified corn caused tumors in rats has withdrawn the paper after a year-long investigation found it did not meet scientific standards.
http://www.gmanetwork.com/news/story/337676/scitech/science/journal-withdraws-controversial-french-monsanto-gm-study http://www.gmanetwork.com/news/story/337676/scitech/science/journal-withdraws-controversial-french-monsanto-gm-study