CNN: A process hailed as a fast, inexpensive and uncontroversial way to produce stem cells has been retracted.
Scientists took a skin cell and coaxed it into acting like an embryo, producing embryonic-like stem cells that could theoretically be turned into any cell in the body. What was described as a "breakthrough" is how these cells were coaxed -- by placing them in an acidic bath.
The process was developed primarily by researchers at the Riken Center for Developmental Biology in Japan.
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