Over the next day and a half, the idea of the screening trial combined with a larger study that comes later gathered steam.

FORBES: The Great Drug Debate

It is based on what scientists learned from a large mammogram screening trial back in the 1970s that involved more than a quarter-million women.

NPR: Online Calculator Estimates Breast Cancer Risk

Cancer Research UK is funding a large-scale trial to see if screening for H.pylori can identify those at risk of developing cancer.

BBC: It is a relatively new area of cancer research