Medicine: Hiroshima Time Bomb

One of the best-documented medical aftereffects of Hiroshima and Nagasaki was the leukemia that developed in many of the survivors. Those who received the heaviest doses of atomic radiation have been eight times more likely than other Japanese to get the disease. Now a new chapter of research by the Atomic Bomb Casualty Commission* reveals what has long been suspected: that those who lived through the A-bombings are more susceptible than others to a whole variety of cancers.

An American-Japanese investigatory team studied 20,000 Hiroshima-Nagasaki survivors, all of whom were under ten in 1945. The findings, reported in the British medical journal...

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