Five genes, for example, make proteins that help H. pylori to stick specifically to the cells of the stomach lining.

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"The reason GE's getting in front of this issue is to help their customers address a big potential liability, " says Phillip H.

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He went on to win a smashing re-election in 1984, survived the Iran-Contra scandal in his second term and closed out his presidency on a wave of popularity that allowed him to help turn the White House over to his vice president, George H.

WSJ: Lessons of Reagan's Rebound