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Response to letter from Professor Tapio Vehmas
  1. William Dill Rogers
  1. Correspondence to Dr William Dill Rogers
    , Department of Emergency Medicine, Georgetown University School of Medicine, Washington, DC, USA; wrogers{at}

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We appreciate Professor Vehmas' thoughtful comments concerning the precise number of cancers caused by performing abdominal CT scans on patients suspected of having appendicitis. As he correctly observes the radiation doses used in our …

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