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  Lifeline: Health reports from NBC
  Child CT scans linked to cancer
A new study found a direct link between exposure to radiation from childhood CT scans and the risk for two common types of cancer. NBC’s Dr. Nancy Snyderman reports.

  Breaking Bioethics — by Arthur Caplan
Opinion: Stem cell clinics ripping off patients
No one likes a bully. Intimidation is a rotten way to get what you want. Yet that's what some in the stem cell therapy industry are trying to do to a group of scientists trying to speak up about the often fraudulent nature of their business, writes bioethicist Art Caplan.

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