The majority of cancer cases can be explained by "bad luck" rather than the result of environmental factors and inherited genes, a U.S. study said Thursday.
Australian scientists on Thursday have revealed that a key discovery may soon lead to the creation of a limitless supply of life-saving stem cells in laboratories.
Chinese scientists have successfully grown tooth-like structures from induced pluripotent stem cells (iPS cells), the Chinese Academy of Sciences (CAS) said.
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