Medical research

First US embryonic stem cell trial is halted

The first-ever trial using human embryonic stem cells to treat paralysis has been halted due to high costs and the company will focus instead on new cancer treatments, Geron said Tuesday.

Medical research

Clues to why most survived China melamine scandal

(AP)—Scientists wondering why some children and not others survived one of China's worst food safety scandals have uncovered a suspect: germs that live in the gut.

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