In January, the Food and Drug Administration approved an experimental paralysis regimen that is the first clinical trial of an embryonic stem cell treatment.

今年一月份，食物药品管理机构批准了一项针对瘫痪的试行制。这是胚胎干细胞在医疗上的第一次临床试验。

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The U.S. Food and Drug Administration regulates which adult stem cell techniques are allowed to go into clinical trials and sets the requirements for more routine use.

CNN: Stem cells may offer promise for damaged hearts

Regulatory agencies, such as the U.S. Food and Drug Administration and the European Medicines Agency, are closely scrutinizing stem cell therapies they are asked to review and approve.

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