Twenty years after Hiroshima.
D002455:Cell Division / Q000528:radiation effects*; D005500:Follow-Up Studies; D049673:History, 20th Century; D006801:Humans; D007564:Japan; D009689:Nuclear Warfare / Q000266:history*; D011830:Radiation Effects; D011847:Radioactive Fallout
D011847:Radioactive Fallout