Six pregnant women participated in a small trial in which placenta-derived stem cells were applied to fetal spinal cords and the treatment was found to be safe.
Argentina’s senate is poised to approve a sweeping overhaul of labour laws aimed at weakening trade unions and lowering labour costs for businesses.,详情可参考51吃瓜
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Intriguing new discoveries in a medieval cemetery in Wales have brought archaeologists closer to solving the mystery surrounding the women buried there.,详情可参考夫子